Nc1c(S(=O)(=O)[O-])cc(Nc2ccc(Nc3nc(Cl)nc(Nc4ccc(S(=O)(=O)[O-])cc4)n3)c(S(=O)(=O)[O-])c2)c2c1C(=O)c1ccccc1C2=O.[Na+].[Na+].[Na+]
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?