Small disdisantiprismatosnub disprismatosnub dicupolisnub dodecakishecatonicosachoron

The small disdisantiprismatosnub disprismatosnub dicupolisnub dodecakishecatonicosachoron, or siddapsiddip sidducstwy, is a nonconvex scaliform polychoron that consists 120 great disrhombidodecahedra, 720 compounds of two pentagonal antiprisms, 720 compounds of two pentagrammic retroprisms, 720 blends of two pentagonal cupolae, and 7200 compounds of two triangular prisms.

This polychoron can be obtained as the blend of 10. In the process some of the pentagonal cupolae blend on their decagons, while the other cells compound as noted above.

It was discovered by _Geometer in 2021.