Retroditetrahedronary trishecatonicosachoron

The retroditetrahedronary trishecatonicosachoron, or radatathi, is a nonconvex uniform polychoron that consists of 120 regular dodecahedra, 120 great stellated dodecahedra, and 120 dodecadodecahedra. 4 great stellated dodecahedra, 4 dodecahedra, and 6 dodecadodecahedra join at each vertex.

It is in the same regiment as the ditetrahedronary dishecatonicosachoron.