| Property | Value |
|---|---|
| Codepoint | U+1D7E1 |
| Literal Character | 𝟡 |
| Name | MATHEMATICAL DOUBLE-STRUCK DIGIT NINE |
| Control Character | no |
| Block | Mathematical Alphanumeric Symbols |
| Subblock | Transliteration signs |
| UTF-8 byte encoding | f0 9d 9f a1 |
| UTF-16 byte encoding | d8 35 df e1 (big endian) |
| HTML Entity | 𝟡 |
| Perl string literal | \x{1D7E1} |