COc1ccc2c(c1)[n+]([O-])c(C(=O)C/C(=N/NC(=O)C[N+](C)(C)C)C(=O)Nc1cccc(C)c1C)c(C)[n+]2[O-].[Cl-]
Heavy atom refers to any atom that is not hydrogen. The heavy atoms in molecules are carbon, oxygen, nitrogen, and sulfur. How many heavy atoms are in the molecule?