Small based dipentary tetrishecatonicosihexacosichoron

The small based dipentary tetrishecatonicosihexacosichoron, or sabdupthix, is a nonconvex uniform polychoron that consists of 120 great icosahedra, 120 icosahedra, 600 cuboctahedra, 120 rhombicosahedra, and 120 small dodecicosahedra. One great icosahedron, one icosahedron, five cuboctahedra, five rhombicosahedra, and five small dodecicosahedra join at each vertex.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the prismatodishecatonicosachoron.