Invertifrustary prismatopentishecatonicosihexacosichoron

The invertifrustary prismatopentishecatonicosihexacosichoron, or ifpophix, is a nonconvex uniform polychoron that consists of 120 dodecadodecahedra, 600 octahedra, 120 great ditrigonal dodecicosidodecahedra, 120 quasirhombicosidodecahedra, 120 small dodecicosahedra, 120 icosidodecatruncated icosidodecahedra, and 1200 hexagonal prisms. One dodecadodecahedron, one octahedron, two great ditrigonal dodecicosidodecahedra, two quasirhombicosidodecahedra, two small dodecicosahedra, four icosidodecatruncated icosidodecahedra, and four hexagonal prisms join at each vertex.

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