Ditrigonary trishecatonicosachoron

The ditrigonary trishecatonicosachoron, or dittathi, is a nonconvex uniform polychoron that consists of 120 great icosidodecahedra, 120 icosidodecahedra, and 120 rhombidodecadodecahedra. Three great icosidodecahedra, three icosidodecahedra, and six rhombidodecadodecahedra join at each vertex.

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