CO[C@]1(NC(=O)[C@H](C(=O)[O-])c2ccc(O)cc2)C(=O)N2C(C(=O)[O-])=C(CSc3nnnn3C)CO[C@H]21.[Na+].[Na+]
All atoms other than hydrogen are referred to be heavy atoms. How many heavy atoms are there in the molecule?