Small ditrigonary hecatonicositetrishecatonicosachoron

The small ditrigonary hecatonicositetrishecatonicosachoron, or sidthiuthi, is a nonconvex uniform polychoron that consists of 120 small ditrigonary icosidodecahedra, 120 great icosidodecahedra, 120 icosidodecahedra, 120 great icosicosidodecahedra, and 120 small dodecicosahedra. Two small ditrigonary icosidodecahedra, three great icosidodecahedra, three icosidodecahedra, six great icosicosidodecahedra, and six small dodecicosahedra join at each vertex.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the rectified small ditrigonary hexacosihecatonicosachoron.