Bitruncated pentacontatetrapeton

The bitruncated pentacontatetrapeton or bitem, also called the bitruncated 122 polytope, is a convex uniform polypeton. It consists of 54 great rhombated demipenteracts and 72 great birhombidodecatera. 4 great rhombated demipenteracts and 2 great birhombidodecatera join at each vertex. As the name suggests, it is the bitruncation of the pentacontatetrapeton.