Small rhombated great hecatonicosachoron

The small rhombated great hecatonicosachoron, or sirghi, is a nonconvex uniform polychoron that consists of 720 pentagonal prisms, 120 dodecadodecahedra, and 120 rhombidodecadodecahedra. 1 dodecadodecahedron, 2 pentagonal prisms, and 2 rhombidodecadodecahedra join at each vertex. it can be obtained by cantellating the great hecatonicosachoron.

Related polychora
The small rhombated great hecatonicosachoron is the colonel of a regiment with 7 members. Its other members include the small retrosphenoverted hecatonicosidishecatonicosachoron, rhombic small dishecatonicosachoron, pseudorhombic small hecatonicosihexacosichoron, grand rhombic small hecatonicosihexacosichoron, small hecatonicosihexacosintercepted dishecatonicosachoron, and small hexacosintercepted prismatodishecatonicosachoron.