COc1ccc(N2C(=O)/C(=C\NNS(=O)(=O)c3ccc(C)c([N+](=O)[O-])c3)c3ccccc3C2=O)cc1OC
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?