Grand ditetrahedronary disprismatohecatonicosachoron

The grand ditetrahedronary disprismatohecatonicosachoron, or gadtadaphi, is a nonconvex uniform polychoron that consists of 120 great icosidodecahedra, 720 pentagrammic prisms, and 1200 triangular prisms. Six great icosidodecahedra, twelve pentagrammic prisms, and twelve triangular prisms join at each vertex.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the grand ditetrahedronary hexacosidishecatonicosachoron.