Small dipentary hexacositrishecatonicosachoron

The small dipentary hexacositrishecatonicosachoron, or sidpixathi, is a nonconvex uniform polychoron that consists of 120 great dodecahedra, 120 great icosahedra, 600 truncated tetrahedra, and 120 truncated icosahedra. 1 great dodecahedron, 1 great icosahedron, 5 truncated tetrahedra, and 5 truncated icosahedra join at each vertex.

It is in the same regiment as the prismatodishecatonicosachoron.