COc1cc(C(CCN2CCCC(C)C2)c2c(OC)cc(OC)c3c2OC(=O)CC3c2ccc(N(C)C)cc2)cc(OC)c1OC
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?