Great retrosphenoverted hecatonicosidishecatonicosachoron

The great retrosphenoverted hecatonicosidishecatonicosachoron, or grawv hidy, is a nonconvex uniform polychoron that consists of 120 dodecadodecahedra, 120 truncated great icosahedra, and 120 icosidodecadodecahedra. 1 dodecadodecahedron, 2 truncated great icosahedra, and 2 icosidodecadodecahedra join at each vertex.

It is in the same regiment as the small rhombated grand stellated hecatonicosachoron.