| HTML Entity (dec) | ∑ |
| HTML Entity (hex) | ∑ |
| UTF-8 (hex) | 0xe28891 / 0xe2 0x88 0x91 (3 bytes) |
| UTF-8 (dec) | 226, 136, 145 (3 bytes) |
| UTF-16-BE (hex) | 0x2211 / 0x22 0x11 (2 bytes) |
| UTF-16-BE (dec) | 34, 17 (2 bytes) |
| UTF-32-BE (hex) | 0x2211 / 0x00 0x00 0x22 0x11 (4 bytes) |
| UTF-32-BE (dec) | 0, 0, 34, 17 (4 bytes) |
| C/C++/Java source code | "\u2211" |
| Python source code | "\u2211" |