Undefined Character (U+1E699)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𞚙` `𞚙`
UTF-8 Encoding:	`0xF0 0x9E 0x9A 0x99`
UTF-16 Encoding:	`0xD839 0xDE99`
UTF-32 Encoding:	`0x0001E699`

References