Great spinotoroidoditrigonary dishecatonicosachoron

The great spinotoroidoditrigonary dishecatonicosachoron, or gontaditdy, is a nonconvex uniform polychoron that consists of 120 rhombicosahedra and 120 small dodecicosahedra. Six of each join at each vertex.

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