Small dipentary hexacositrishecatonicosihexacosichoron

The small dipentary hexacositrishecatonicosihexacosichoron, or sidpixthix, is a nonconvex uniform polychoron that consists of 120 small stellated dodecahedra, 600 truncated tetrahedra, 120 rhombidodecadodecahedra, 600 cubohemioctahedra, and 120 small dodecicosidodecahedra. One small stellated dodecahedron, five truncated tetrahedra, five rhombidodecadodecahedra, five cubohemioctahedra, and five small dodecicosidodecahedra join at each vertex.

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