"" (U+222C)

Name DOUBLE INTEGRAL
Unicode Versin1.1
Plane(面)基本多言語面 (Basic Multilingual Plane)
Block(ブロック)数学記号 (Mathematical Operators)
ScriptCommon (Zyyy)
CategoryMath_Symbol (Sm)
HTML Entity
∬
∬
UTF-8 Encoding e288ac
UTF-16 Encoding 222c
UTF-32 Encoding 0000222c
∫ U+222B
∭ U+222D