Great spinoprismatohexacosihecatonicosachoron

The great spinoprismatohexacosihecatonicosachoron, or ganpixhi, is a nonconvex uniform polychoron that consists of 120 great rhombidodecahedra, 600 tetrahedra, and 1200 triangular prisms. Three great rhombidodecahedra, one tetrahedron, and three triangular prisms join at each vertex.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the great hexacosihecatonicosihecatonicosachoron.