You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2,6,6-trimethyl-4-pentadecyl-1,3,6,2lambda5-dioxazaphosphocan-6-ium 2-oxide;bromide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H47BrNO3P
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