CCC(C)C1=C(OC(C)=O)[N+]2([O-])Oc3ccc(-c4c(OC(C)=O)c(OC(C)=O)c(-c5ccc(OC(C)=O)cc5)c(OC(C)=O)c4OC(C)=O)cc3OC2(C(C)CC)C(=O)N1OC(C)=O
Heavy atom refers to any atom that is not hydrogen. The heavy atoms in molecules are carbon, oxygen, nitrogen, and sulfur. How many heavy atoms are in the molecule?