Small ditetrahedronary prismatotrishecatonicosachoron

The small ditetrahedronary prismatotrishecatonicosachoron, or sadtapthi, is a nonconvex uniform polychoron that consists of 120 great ditrigonary icosidodecahedra, 120 dodecahedra, 1200 triangular prisms, and 120 small rhombidodecahedra. Four great ditrigonary icosidodecahedra, four dodecahedra, 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.