COc1ccc(C(=O)C(CC2C(=O)CC(C)(C)C(C(=O)C(=O)Nc3c(C)cccc3C)C2=O)c2ccc(OC)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?