Demirectified icosiheptaheptacontadipeton

The demirectified icosiheptaheptacontadipeton or harjak, also called the trirectified 221 polytope, is a convex uniform polypeton. It consists of 27 small rhombated demipenteracts, 27 rectified penteracts, and 72 rectified hexatera. 4 small rhombated demipenteracts, 2 rectified penteracts, and 1 rectified hexateron join at each vertex. It is the trirectification of the icosiheptaheptacontadipeton.