Small dipentary hecatonicosiprismatohexacosihecatonicosachoron

The small dipentary hecatonicosiprismatohexacosihecatonicosachoron, or sidphippixhi, is a nonconvex uniform polychoron that consists of 120 icosahedra, 1200 triangular prisms, 600 cubohemioctahedra, and 120 small dodecicosahedra. One icosahedron, five triangular 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.