Unicode Character "∬" (U+222C)

The character (Double Integral) is represented by the Unicode codepoint U+222C. 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 Double Integral
Unicode Codepoint U+222C
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
Decomposition mapping

U+222C Conversion

HTML (decimal) ∬
HTML (hex) ∬
HTML (named) ∬
URL Escape Code %E2%88%AC
CSS \00222C
JavaScript, JSON \u222C
C, C++, Java \u222C
Python \u222C
Rust \u{222C}
Ruby \u222C

How to type "∬"

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


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

UTF Encodings

UTF-8 (hex) 0xE2 0x88 0xAC
UTF-16 (hex) 0x222C
UTF-32 (hex) 0x0000222C