Hendecagonal duotruncatoalterprism

The hendecagonal duotruncatoalterprism is a convex isogonal polychoron and the ninth member of the duotruncatoalterprism family. It consists of 22 hendecagonal prisms, 44 hendecagonal cupolas, 121 rectangular trapezoprisms, and 121 tetragonal disphenoids. 1 hendecagonal prism, 3 hendecagonal prisms, 2 rectangular trapezoprisms, and 1 tetragonal disphenoid join at each vertex. It can be obtained as the convex hull of two orthogonal hendecagonal-icosidigonal duoprisms. However, it cannot be made scaliform.