Small dipentary hecatonicosiprismatohecatonicosihexacosichoron

The small dipentary hecatonicosiprismatohecatonicosihexacosichoron, or sidphiphix, is a nonconvex uniform polychoron that consists of 120 small stellated dodecahedra, 720 pentagrammic prisms, 600 cubohemioctahedra, and 120 small dodecicosahedra. One small stellated dodecahedron, five pentagrammic prisms, five cubohemioctahedra, and five small dodecicosahedra join at each vertex.

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