Small ditrigonary hecatonicosihecatonicosihecatonicosachoron

The small ditrigonary hecatonicosihecatonicosihecatonicosachoron, or sidthihihy, is a nonconvex uniform polychoron that consists of 120 great ditrigonal dodecicosidodecahedra, 120 icosidodecadodecahedra, and 120 small icosicosidodecahedra. Six of each join at each vertex.

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