Cl.Cn1cc(NC(=O)c2cc(NC(=O)Nc3cc(C(=O)Nc4cc(C(=O)NCCC(=N)N)n(C)c4)n(C)c3)cn2C)cc1C(=O)NCCC(=N)N
All atoms other than hydrogen are referred to be heavy atoms. How many heavy atoms are there in the molecule?