Source: Noto Sans Linear B

U+1012B Aegean Number Ten Thousand

U+1012B was added in Unicode version 4.0 in 2003. It belongs to the block U+10100 to U+1013F Aegean Numbers in the U+10000 to U+1FFFF Supplementary Multilingual Plane.

This character is a Other Number and is commonly used, that is, in no specific script. It is also used in the scripts Cypriot syllabary, Linear A, Linear B. The codepoint has the numeric value 10000.

The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it is written from left to right. When changing direction it is not mirrored. The word that U+1012B forms with similar adjacent characters prevents a line break inside it.

The Wikipedia has the following information about this codepoint:

Myriad (from Ancient Greek μυριάς, myrias) is technically the number 10,000 (ten thousand); in that sense, the term is used in English almost exclusively for literal translations from Greek, Latin or Sinospheric languages (Chinese, Japanese, Korean, and Vietnamese), or when talking about ancient Greek numerals.
More generally, myriad may be used in colloquial vernaculars to imply an indefinitely large number.

Representations

System	Representation
Nº	65835
UTF-8	F0 90 84 AB
UTF-16	D8 00 DD 2B
UTF-32	00 01 01 2B
URL-Quoted	%F0%90%84%AB
HTML hex reference	𐄫
Wrong windows-1252 Mojibake	ð„«

Elsewhere

Complete Record

Property	Value
Age (age)	4.0 (2003)
Unicode Name (na)	AEGEAN NUMBER TEN THOUSAND
Unicode 1 Name (na1)	—
Block (blk)	Aegean Numbers
General Category (gc)	Other Number
Script (sc)	Common
Bidirectional Category (bc)	Left To Right
Combining Class (ccc)	Not Reordered
Decomposition Type (dt)	none
Decomposition Mapping (dm)	Aegean Number Ten Thousand
Lowercase (Lower)	✘
Simple Lowercase Mapping (slc)	Aegean Number Ten Thousand
Lowercase Mapping (lc)	Aegean Number Ten Thousand
Uppercase (Upper)	✘
Simple Uppercase Mapping (suc)	Aegean Number Ten Thousand
Uppercase Mapping (uc)	Aegean Number Ten Thousand
Simple Titlecase Mapping (stc)	Aegean Number Ten Thousand
Titlecase Mapping (tc)	Aegean Number Ten Thousand
Case Folding (cf)	Aegean Number Ten Thousand
ASCII Hex Digit (AHex)	✘
Alphabetic (Alpha)	✘
Bidi Control (Bidi_C)	✘
Bidi Mirrored (Bidi_M)	✘
Composition Exclusion (CE)	✘
Case Ignorable (CI)	✘
Changes When Casefolded (CWCF)	✘
Changes When Casemapped (CWCM)	✘
Changes When NFKC Casefolded (CWKCF)	✘
Changes When Lowercased (CWL)	✘
Changes When Titlecased (CWT)	✘
Changes When Uppercased (CWU)	✘
Cased (Cased)	✘
Full Composition Exclusion (Comp_Ex)	✘
Default Ignorable Code Point (DI)	✘
Dash (Dash)	✘
Deprecated (Dep)	✘
Diacritic (Dia)	✘
Emoji Modifier Base (EBase)	✘
Emoji Component (EComp)	✘
Emoji Modifier (EMod)	✘
Emoji Presentation (EPres)	✘
Emoji (Emoji)	✘
Extender (Ext)	✘
Extended Pictographic (ExtPict)	✘
FC NFKC Closure (FC_NFKC)	Aegean Number Ten Thousand
Grapheme Cluster Break (GCB)	Any
Grapheme Base (Gr_Base)	✔
Grapheme Extend (Gr_Ext)	✘
Grapheme Link (Gr_Link)	✘
Hex Digit (Hex)	✘
Hyphen (Hyphen)	✘
ID Continue (IDC)	✘
ID Start (IDS)	✘
IDS Binary Operator (IDSB)	✘
IDS Trinary Operator and (IDST)	✘
IDSU (IDSU)	0
ID_Compat_Math_Continue (ID_Compat_Math_Continue)	0
ID_Compat_Math_Start (ID_Compat_Math_Start)	0
Ideographic (Ideo)	✘
InCB (InCB)	None
Indic Mantra Category (InMC)	—
Indic Positional Category (InPC)	NA
Indic Syllabic Category (InSC)	Other
Jamo Short Name (JSN)	—
Join Control (Join_C)	✘
Logical Order Exception (LOE)	✘
Math (Math)	✘
Noncharacter Code Point (NChar)	✘
NFC Quick Check (NFC_QC)	Yes
NFD Quick Check (NFD_QC)	Yes
NFKC Casefold (NFKC_CF)	Aegean Number Ten Thousand
NFKC Quick Check (NFKC_QC)	Yes
NFKC_SCF (NFKC_SCF)	Aegean Number Ten Thousand
NFKD Quick Check (NFKD_QC)	Yes
Other Alphabetic (OAlpha)	✘
Other Default Ignorable Code Point (ODI)	✘
Other Grapheme Extend (OGr_Ext)	✘
Other ID Continue (OIDC)	✘
Other ID Start (OIDS)	✘
Other Lowercase (OLower)	✘
Other Math (OMath)	✘
Other Uppercase (OUpper)	✘
Prepended Concatenation Mark (PCM)	✘
Pattern Syntax (Pat_Syn)	✘
Pattern White Space (Pat_WS)	✘
Quotation Mark (QMark)	✘
Regional Indicator (RI)	✘
Radical (Radical)	✘
Sentence Break (SB)	Other
Soft Dotted (SD)	✘
Sentence Terminal (STerm)	✘
Terminal Punctuation (Term)	✘
Unified Ideograph (UIdeo)	✘
Variation Selector (VS)	✘
Word Break (WB)	Other
White Space (WSpace)	✘
XID Continue (XIDC)	✘
XID Start (XIDS)	✘
Expands On NFC (XO_NFC)	✘
Expands On NFD (XO_NFD)	✘
Expands On NFKC (XO_NFKC)	✘
Expands On NFKD (XO_NFKD)	✘
Bidi Paired Bracket (bpb)	Aegean Number Ten Thousand
Bidi Paired Bracket Type (bpt)	None
East Asian Width (ea)	neutral
Hangul Syllable Type (hst)	Not Applicable
ISO 10646 Comment (isc)	—
Joining Group (jg)	No_Joining_Group
Joining Type (jt)	Non Joining
Line Break (lb)	Alphabetic
Numeric Type (nt)	numeric
Numeric Value (nv)	10000
Simple Case Folding (scf)	Aegean Number Ten Thousand
Script Extension (scx)	Cypriot syllabary Linear A Linear B
Vertical Orientation (vo)	R