CC(=O)NC1C(OCc2ccccc2)OC(CO)C(O)C1OCC(=O)N[C@@H](C)C(=O)N[C@H](CCC(=O)NCCCNc1c2ccccc2nc2cccc([N+](=O)[O-])c12)C(N)=O
Heavy atom refers to any atom that is not hydrogen. How many heavy atoms do the molecule have?