Grand ditrigonary hecatonicosidishecatonicosachoron

The grand ditrigonary hecatonicosidishecatonicosachoron, or gadthidy, is a nonconvex uniform polychoron that consists of 120 great ditrigonary icosidodecahedra, 120 icosidodecadodecahedra, and 120 small icosicosidodecahedra. Two great ditrigonary icosidodecahedra, six icosidodecadodecahedra, and six small icosicosidodecahedra join at each vertex.

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