Great dipentary hecatonicosidishexacosichoron

The great dipentary hecatonicosidishexacosichoron, or gad phiddix, is a nonconvex uniform polychoron that consists of 120 great icosahedra, 600 truncated tetrahedra, and 600 octahemioctahedra. One great icosahedron, five truncated tetrahedra, and five octahemioctahedra join at each vertex.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the great dipentary trishecatonicosachoron.