| HTML Entity (dec) | ↙ |
| HTML Entity (hex) | ↙ |
| UTF-8 (hex) | 0xe28699 / 0xe2 0x86 0x99 (3 bytes) |
| UTF-8 (dec) | 226, 134, 153 (3 bytes) |
| UTF-16-BE (hex) | 0x2199 / 0x21 0x99 (2 bytes) |
| UTF-16-BE (dec) | 33, 153 (2 bytes) |
| UTF-32-BE (hex) | 0x2199 / 0x00 0x00 0x21 0x99 (4 bytes) |
| UTF-32-BE (dec) | 0, 0, 33, 153 (4 bytes) |
| C/C++/Java source code | "\u2199" |
| Python source code | "\u2199" |