Undefined Character (U+116D9)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𑛙` `𑛙`
UTF-8 Encoding:	`0xF0 0x91 0x9B 0x99`
UTF-16 Encoding:	`0xD805 0xDED9`
UTF-32 Encoding:	`0x000116D9`

References