Small dipentary disprismatotrishecatonicosihexacosichoron

The small dipentary disprismatotrishecatonicosihexacosichoron, or siddip dipthix, is a nonconvex uniform polychoron that consists of 120 great icosahedra, 120 great dodecahedra, 600 octahemioctahedra, 120 icosidodecadodecahedra, 720 pentagrammic prisms, and 1200 triangular prisms. One great icosahedron, one great dodecahedron, five octahemioctahedra, five icosidodecadodecahedra, five pentagrammic prisms, and five triangular prisms join at each vertex.

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