| Name | DOUBLE-STRUCK N-ARY SUMMATION |
| Unicode Version | 3.2 |
| Block（ブロック） | Letterlike Symbols（文字様記号） |
| Plane（面） | Basic Multilingual Plane（基本多言語面） |
| Script | |
| Category | |
| Bidirectional Class | |
| Combining Class | |
| Character is Mirrored | |
| HTML Entity | ⅀ ⅀ |
| UTF-8 Encoding | ⅀ e28580 |
| UTF-16 Encoding | ⅀ 2140 |
| UTF-32 Encoding | ⅀ 00002140 |