You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (1S,2S)-N-[3-(1-methylbenzimidazol-2-yl)propyl]-2-pyridin-3-ylcyclopropane-1-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C20H22N4O
assistant