You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2,2,7,10-tetramethyl-1,4,14,21-tetraza-7-azoniahexacyclo[11.9.1.03,8.09,23.014,22.015,20]tricosa-3,5,7,9,11,13(23),15,17,19,21-decaene by IUPAC nomenclature, provide its molecular formula.
user
C22H20N5+
assistant