Undefined Character (U+1CDE9)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𜷩` `𜷩`
UTF-8 Encoding:	`0xF0 0x9C 0xB7 0xA9`
UTF-16 Encoding:	`0xD833 0xDDE9`
UTF-32 Encoding:	`0x0001CDE9`

References