Great ditrigonal hecatonicosihexacosihecatonicosachoron

The great ditrigonal hecatonicosihexacosihecatonicosachoron, or gidthixhi, is a nonconvex uniform polychoron that consists of 600 regular tetrahedra, 120 regular dodecahedra, and 120 great ditrigonal dodecicosidodecahedra. 1 tetrahedron, 1 dodecahedron, and 3 great ditrigonal dodecicosidodecahedra join at each vertex.

Related polychora
The great ditrigonal hecatonicosihexacosihecatonicosachoron is the colonel of a regiment of 7 members. Its other members include the great dishexacosidishecatonicosachoron, hexacosihecatonicosintercepted hecatonicosachoron, great hecatonicosafaceted hexacosidishecatonicosachoron, great hexacosifaceted hexacosidishecatonicosachoron, great spinotrishecatonicosachoron, and great spinohecatonicosidishexacosichoron.