Great ditrigonary hecatonicosihexacosidishecatonicosihecatonicosachoron

The great ditrigonary hecatonicosihexacosidishecatonicosihecatonicosachoron, or gidthixady hi, is a nonconvex uniform polychoron that consists of 120 small ditrigonary icosidodecahedra, 600 octahedra, 120 icosidodecahedra, 120 icosidodecadodecahedra, and 120 small dodecicosahedra. Two small ditrigonary icosidodecahedra, three octahedra, three icosidodecahedra, six icosidodecadodecahedra, and six small dodecicosahedra join at each vertex.

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