COc1ccc(-c2c(C#N)c(SCC(=O)Nc3ccc(C)c(C)c3)nc(C)c2C(=O)Nc2ccc(Cl)cc2)cc1
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?