O=C(N/N=C1/C[C@@H](O)[C@@H](O)[C@H]2[C@@H]1CC[C@@H]1C(=O)N(C3CCCCC3)C(=O)[C@H]12)OCc1ccccc1
All atoms other than hydrogen are referred to be heavy atoms. How many heavy atoms are there in the molecule?