Small ditrigonary tetrishecatonicosachoron

The small ditrigonary tetrishecatonicosachoron, or sidtuthi, is a nonconvex uniform polychoron that consists of 120 small ditrigonary icosidodecahedra, 120 great ditrigonal dodecicosidodecahedra, 120 icosidodecadodecahedra, and 120 small dodecicosahedra. Two small ditrigonary icosidodecahedra, six great ditrigonal dodecicosidodecahedra, six icosidodecadodecahedra, 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.