Great sphenoidal heptachiliadiacosichoron

The great sphenoidal heptachiliadiacosichoron is a convex isochoric polychoron with 7200 sphenoids as cells. It can be obtained as the dual of the great rhombated hecatonicosachoron.

It can also be constructed as the convex hull of a hecatonicosachoron, a hexacosichoron, and a rectified hecatonicosachoron. If the hecatonicosachoron has edge length 1, the hexacosichoron has edge length $$\frac{13+5\sqrt5}{10} ≈ 2.41804$$ and the rectified hecatonicosachoron has edge length $$\frac{56+19\sqrt5}{121} ≈ 0.81393$$.