Small skewverted prismatohecatonicosidishexacosichoron

The small skewverted prismatohecatonicosidishexacosichoron, or sik vaphiddix, is a nonconvex uniform polychoron that consists of 120 great dodecicosahedra, 600 cubohemioctahedra, 720 decagrammic prisms, and 600 truncated octahedra. One great dodecicosahedron, one cubohemioctahedron, two decagrammic prisms, and two truncated octahedra join at each vertex.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the small skewverted ditrigonal prismatohexacosidishecatonicosachoron.