U+0401
CHARACTER
CYRILLIC CAPITAL LETTER IO
Category:
Uppercase Letter (Lu)
Block:
Cyrillic
Script:
Cyrillic
Age:
Unicode 1.1
Plane:
Basic Multilingual Plane (BMP)
Quick Facts
| Unicode Name |
CYRILLIC CAPITAL LETTER IO
|
|
|---|---|---|
| Code Point |
U+0401
|
|
| Decimal Value |
1025
|
|
| General Category | Uppercase Letter (Lu) → | |
| Unicode Block | Cyrillic → | |
| Script | Cyrillic → | |
| Unicode Version | Unicode 1.1 → | |
| Unicode Plane |
Basic Multilingual Plane (BMP)
|
Byte Encodings
| UTF-8 2 bytes |
D0 81
|
|
|---|---|---|
| UTF-16 Code Unit |
0401
|
|
| UTF-32 4 bytes |
00000401
|
|
| UTF-16BE / LE Byte Order |
BE:
04 01
LE: 01 04
|
|
| UTF-32BE / LE Byte Order |
BE:
00 00 04 01
LE: 01 04 00 00
|
Developer Code Escapes
| HTML Decimal |
Ё
|
|
|---|---|---|
| HTML Hexadecimal |
Ё
|
|
| HTML Named Entity |
None
|
|
| CSS Escape |
\000401
|
|
| JavaScript (ES6) |
\u0401
|
|
| JavaScript (UTF-16) |
\u0401
|
|
| JSON Escape |
\u0401
|
|
| Python |
\u0401
|
|
| PHP |
"\u{401}"
|
|
| Java |
"\u0401"
|
|
| C / C++ |
"\u0401"
|
|
| Rust |
'\u{401}'
|
|
| URL Percent-Encoded |
%D0%81
|
Normalization & Decomposition
| Combining Class |
0 — Not Reordered (Spacing)
|
|
|---|---|---|
| Decomposition |
0415 0308
canonical
|
|
| NFC / NFD Forms | NFD decomposes to constituent code points; NFC composes into this unified scalar. |
Bidirectional Properties
| Bidi Class |
L — Left-to-Right
|
|
|---|---|---|
| Bidi Mirrored | No |
Case Mapping & Numeric Data
| Lowercase Mapping |
ё
U+0451 →
|
|---|
Font Specimen & Rendering
Visual rendering of U+0401 across standard system font stacks. Rendering fidelity depends on installed OS font glyph coverage.
Ё
Context:
A Ё Z 123
Ё
Context:
A Ё Z 123
Ё
Context:
A Ё Z 123
Ё
Context:
A Ё Z 123