U+21EFF

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U+21EFF is not a valid unicode character.
Encodings
HTML Entity (decimal) 𡻿
HTML Entity (hex) 𡻿
How to type in Microsoft Windows Alt +21EFF
UTF-8 (hex) 0xF0 0xA1 0xBB 0xBF (f0a1bbbf)
UTF-8 (binary) 11110000:10100001:10111011:10111111
UTF-16 (hex) 0xD847 0xDEFF (d847deff)
UTF-16 (decimal) 55,367 57,087
UTF-32 (hex) 0x00021EFF (21eff)
UTF-32 (decimal) 139,007
C/C++/Java source code "\uD847\uDEFF"
Python source code u"\U00021EFF"
More...
Java Data
string.toUpperCase() 𡻿
string.toLowerCase() 𡻿
Character.UnicodeBlock CJK_UNIFIED_IDEOGRAPHS_EXTENSION_B
Character.charCount() 2
Character.getDirectionality() DIRECTIONALITY_LEFT_TO_RIGHT [0]
Character.getNumericValue() -1
Character.getType() 5
Character.isDefined() Yes
Character.isDigit() No
Character.isIdentifierIgnorable() No
Character.isISOControl() No
Character.isJavaIdentifierPart() Yes
Character.isJavaIdentifierStart() Yes
Character.isLetter() Yes
Character.isLetterOrDigit() Yes
Character.isLowerCase() No
Character.isMirrored() No
Character.isSpaceChar() No
Character.isSupplementaryCodePoint() Yes
Character.isTitleCase() No
Character.isUnicodeIdentifierPart() Yes
Character.isUnicodeIdentifierStart() Yes
Character.isUpperCase() No
Character.isValidCodePoint() Yes
Character.isWhitespace() No