Undefined Character (U+12F81)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𒾁` `𒾁`
UTF-8 Encoding:	`0xF0 0x92 0xBE 0x81`
UTF-16 Encoding:	`0xD80B 0xDF81`
UTF-32 Encoding:	`0x00012F81`

References