Small dipentary tetrishecatonicosihexacosichoron

The small dipentary tetrishecatonicosihexacosichoron, or sidputhix, is a nonconvex uniform polychoron that consists of 120 small stellated dodecahedra, 120 icosahedra, 600 octahemioctahedra, 120 icosidodecadodecahedra, and 120 small dodecicosidodecahedra. One small stellated dodecahedron, one icosahedron, five octahemioctahedra, five icosidodecadodecahedra, and five small dodecicosidodecahedra join at each vertex.

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