O=C(C1=C[C@H](c2ccc(Br)cc2)C[C@H](OCc2ccc(CO)cc2)O1)N1CCN(Cc2ccc3c(c2)OCO3)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?