Grand ditrigonary trishecatonicosachoron

The grand ditrigonary trishecatonicosachoron, or gadtithi, is a nonconvex uniform polychoron that consists of 120 great ditrigonary icosidodecahedra, 120 great icosicosidodecahedra, and 120 small dodecicosahedra. Two great ditrigonary icosidodecahedra, six great icosicosidodecahedra, 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.