Small retroditetrahedronary prismatotrishecatonicosachoron

The small retroditetrahedronary prismatotrishecatonicosachoron is a nonconvex uniform polychoron that consists of 120 dodecahedra, 120 icosidodecahedra, 1200 triangular prisms, and 120 small rhombidodecahedra. Four dodecahedra, six icosidodecahedra, twelve triangular prisms, and twelve small rhombidodecahedra join at each vertex.

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