Birectified pentacontatetrapeton

The birectified pentacontatetrapeton or barm, also called the birectified 122 polytope, is a convex uniform polypeton. It consists of 54 small rhombated demipenteracts and 72 small birhombidodecatera. 4 small rhombated demipenteracts and 3 small birhombidodecatera join at each vertex. As the name suggests, it is the birectification of the pentacontatetrapeton.