Small ditrigonary hecatonicosidishecatonicosihexacosichoron

The small ditrigonary hecatonicosidishecatonicosihexacosichoron, or sidthidhix, is a nonconvex uniform polychoron that consists of 120 ditrigonary dodecadodecahedra, 120 great icosidodecahedra, 600 octahedra, and 120 great ditrigonal dodecicosidodecahedra. Two ditrigonary dodecadodecahedra, three great icosidodecahedra, three octahedra, and six great ditrigonal dodecicosidodecahedra join at each vertex.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the rectified small ditrigonary hexacosihecatonicosachoron.