Invertifrustary dishexacosipentishecatonicosachoron

The invertifrustary dishexacosipentishecatonicosachoron, or ifdixophi, is a nonconvex uniform polychoron that consists of 120 dodecadodecahedra, 600 octahedra, 120 great ditrigonal dodecicosidodecahedra, 120 quasirhombicosidodecahedra, 120 small dodecicosahedra, 120 quasitruncated dodecadodecahedra, and 600 truncated octahedra. One dodecadodecahedron, one octahedron, two great ditrigonal dodecicosidodecahedra, two quasirhombicosidodecahedra, two small dodecicosahedra, four quasitruncated dodecadodecahedra, and four truncated octahedra join at each vertex.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the antifrustary hexacositrishecatonicosachoron.