Undefined Character (U+12FD9)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𒿙` `𒿙`
UTF-8 Encoding:	`0xF0 0x92 0xBF 0x99`
UTF-16 Encoding:	`0xD80B 0xDFD9`
UTF-32 Encoding:	`0x00012FD9`

References