Small diretrosnub prismatosnub dishexacositetrishexacosichoron

The small diretrosnub prismatosnub dishexacositetrishexacosichoron, or sadersposid xotux, is a nonconvex uniform polychoron that consists of 1200 great icosahedra (some of which lie in the same hyperplanes, forming 600 small retrosnub disoctahedra), 600 icosahedra, 4800 octahemioctahedra (forming 2400 compounds of two), 600 small dodecicosahedra and 600 small ditrigonal dodecicosidodecahedra (forming 600 compounds of one of each), 600 rhombicosahedra, and 3600 pentagrammic prisms.

Two great icosahedra (two compounds), one icosahedron, eight octahemioctahedra (eight compounds), five small dodecicosahedra and five small ditrigonal dodecicosidodecahedra (ten compounds), five rhombicosahedra, and five pentagrammic prisms join at each vertex.

It can be obtained as the blend of 5 small dipentary dishecatonicosihexacosihecatonicosachora and 5 small capped dipentary prismatodishecatonicosihexacosihecatonicosachora.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the small diretrosnub disnub decahecatonicosadishexacosichoron.