COc1ccccc1/C=C/C1=NN(c2cccc(S(=O)(=O)O)c2)C2(C1)C(Cl)C(=O)N2c1nc2ccccc2s1
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?