O=C(/C=C(\S/C=C(/c1ccccc1)N1CCn2c(C(=O)c3ccccc3)c(C(=O)c3ccccc3)c(C(=O)c3ccccc3)c21)C(=O)c1ccccc1)c1ccccc1
All atoms other than hydrogen are referred to be heavy atoms. How many heavy atoms are there in the molecule?