Undefined Character (U+12FF8)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𒿸` `𒿸`
UTF-8 Encoding:	`0xF0 0x92 0xBF 0xB8`
UTF-16 Encoding:	`0xD80B 0xDFF8`
UTF-32 Encoding:	`0x00012FF8`

References