U+3220 "㈠" Parenthesized Ideograph One Unicode Character
Unicode Version 17.0
㈠
U+3220 "㈠" Parenthesized Ideograph One is a CJK (Chinese, Japanese, and Korean) enclosed ideograph representing the number one, used within an enclosing parenthesis. It is part of a set of characters designed for compatibility with East Asian legacy encoding standards, where numbers are often written in a highly formal or stylized manner, particularly in contexts like lists, outlines, or legal documents. The symbol visually combines the ideograph for "one" (一) inside curved parentheses, distinguishing it from simpler numeral representations and allowing it to be treated as a single unified glyph for precise typesetting.
General Properties
| Code Point | U+3220 |
| Version Added | 1.1 |
| Name | Parenthesized Ideograph One |
| Block | Enclosed CJK Letters and Months |
| General Category | Other Number |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Compat |
| Decomposition Mapping | "(" U+0028 Left Parenthesis "一" U+4E00 CJK Unified Ideograph-# ")" U+0029 Right Parenthesis |
Encodings
| HTML Decimal Encoding | ㈠ |
| HTML Hex Encoding | ㈠ |
| UTF-8 Encoding | 0xE3 0x88 0xA0 |
| UTF-16 Encoding | 0x3220 |
| UTF-32 Encoding | 0x00003220 |
| C/C++/Java Escape | \u3220 |