Small prismatohecatonicosachoron

The small prismatohecatonicosachoron, or sophi, is a nonconvex uniform polychoron that consists of 120 great dodecahedra and 720 pentagonal prisms. 2 great dodecahedra and 10 pentagonal prisms join at each vertex.

It is in the same regiment as the rectified hexacosichoron.

A double cover of this polychoron can be formed by expanding the cells of the great hecatonicosachoron outward.