Cc1ccc([N+](=O)[O-])cc1S(=O)(=O)Nc1ccc(C2=NN(S(=O)(=O)c3cc([N+](=O)[O-])ccc3C)C(c3ccco3)C2)cc1
All atoms other than hydrogen are referred to be heavy atoms. How many heavy atoms are there in the molecule?