Unicode Character "∑" (U+2211)

The character (N-Ary Summation) is represented by the Unicode codepoint U+2211. It is encoded in the Mathematical Operators block, which belongs to the Basic Multilingual Plane. It was added to Unicode in version 1.1 (June, 1993). It is HTML encoded as ∑.

Main Unicode Properties

Name N-Ary Summation
Unicode Codepoint U+2211
Unicode Version 1.1 (June, 1993)
Block Mathematical Operators
Plane Basic Multilingual Plane

Bidirectional Data

Bidirectional class Other Neutral (ON)
Is mirrored? Yes

Other Unicode Data

Category Math Symbol
Script Code for undetermined script
Combining Class Not Reordered

U+2211 Conversion

HTML (decimal) ∑
HTML (hex) ∑
HTML (named) ∑
URL Escape Code %E2%88%91
CSS \002211
JavaScript, JSON \u2211
C, C++, Java \u2211
Python \u2211
Rust \u{2211}
Ruby \u2211

How to type "∑"

  • Windows ?: Hold Alt, then type 2 2 1 1. Release Alt.
  • Mac ?: Hold Alt ⌥, then type 2 2 1 1. Release Alt.


  • Times, Times New Roman, serif
  • Helvetica, Arial, sans-serif
  • Courier, Courier New, monospace

UTF Encodings

UTF-8 (hex) 0xE2 0x88 0x91
UTF-16 (hex) 0x2211
UTF-32 (hex) 0x00002211

Characters based on "∑" (U+2211)