Small dipentary dishecatonicosidishexacosichoron

The small dipentary dishecatonicosidishexacosichoron, or sidpid hiddix, is a nonconvex uniform polychoron that consists of 120 great icosahedra, 600 truncated tetrahedra, 600 cubohemioctahedra, and 120 small rhombidodecahedra. One great icosahedron, five truncated tetrahedra, five cubohemioctahedra, and five small rhombidodecahedra join at each vertex.

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