COC(=O)[C@@]1(Cc2ccc(OC)cc2)[C@H]2c3cc(C(=O)N4CCCC4)n(CCN4CNCC4=O)c3C[C@H]2CN1C(=O)c1ccccc1
All atoms other than hydrogen are referred to be heavy atoms. How many heavy atoms are there in the molecule?