Antifrustary hexacositrishecatonicosachoron

The antifrustary hexacositrishecatonicosachoron, or affixthi, is a nonconvex uniform polychoron that consists of 600 octahedra, 120 dodecadodecahedra, 120 great dodecicosidodecahedra, and 120 great ditrigonal dodecicosidodecahedra. 1 octahedron, 1 dodecadodecahedron, 2 great dodecicosidodecahedra, and 2 great ditrigonal dodecicosidodecahedra join at each vertex.

The antifrustary hexacositrishecatonicosachoron contains the vertices of a great prismatodecachoron.

Related polychora
The antifrustary hexacositrishecatonicosachoron is the colonel of a regiment of 99 members, plus one fissary and one compound.