Small tritrigonary trishecatonicosihexacosichoron

The small tritrigonary trishecatonicosihexacosichoron, or stut thix, is a nonconvex uniform polychoron that consists of 600 regular tetrahedra, 120 truncated icosahedra, 120 small icosicosidodecahedra, and 120 ditrigonary dodecadodecahedra. 1 tetrahedron, 3 truncated icosahedra, 3 small icosicosidodecahedra, and 1 ditrigonary dodecadodecahedron join at each vertex.

It is in the same regiment as the small tritrigonary prismatohecatonicosidishexacosichoron.