CC(=O)O.CC(=O)[O-].Cc1cccc2nc3cccc(C(=O)NCCC[N+](C)(CCCNC(=O)c4cccc5nc6cccc(C)c6nc45)Cc4ccc([N+](=O)[O-])n4C)c3nc12
Heavy atom refers to any atom that is not hydrogen. How many heavy atoms do the molecule have?