O=C1CN2CCN(CC2)CC(=O)Nc2ccc(cc2)S(=O)(=O)c2ccc(cc2)NC(=O)CN2CCN(CC2)CC(=O)Nc2ccc(cc2)S(=O)(=O)c2ccc(cc2)N1
All atoms other than hydrogen are referred to be heavy atoms. How many heavy atoms are there in the molecule?