CCOP(=S)(OCC)Oc1ccc2c(c1)OC(=O)[C@]1(Cl)[C@@]2(C)[C@]2(Cl)C(=O)Oc3cc(OP(=S)(OCC)OCC)ccc3[C@]12C
All atoms other than hydrogen are referred to be heavy atoms. How many heavy atoms are there in the molecule?