Small dipentary prismatohecatonicosihexacosihecatonicosachoron

The small dipentary prismatohecatonicosihexacosihecatonicosachoron, or siddip phixhi, is a nonconvex uniform polychoron that consists of 120 icosahedra, 720 pentagrammic prisms, 600 cubohemioctahedra, and 120 small icosicosidodecahedra. One icosahedron, five pentagrammic prisms, five cubohemioctahedra, and five small icosicosidodecahedra join at each vertex.

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