Inverted retropental prismatointercepted dishecatonicosachoron

The inverted retropental prismatointercepted dishecatonicosachoron, or irp panady, is a nonconvex uniform polychoron that consists of 120 great icosahedra, 720 pentagrammic prisms, and 120 great dodecicosidodecahedra. Two great icosahedra, ten pentagrammic prisms, and ten great dodecicosidodecahedra join at each vertex.

Vertex coordinates
The vertices are the same as those of the regiment colonel, the rectified great faceted hexacosichoron.