| genus c | 21, orientable |
| Schläfli formula c | {84,84} |
| V / F / E c | 1 / 1 / 42 |
| notes | |
| vertex, face multiplicity c | 84, 84 |
| 42, each with 2 edges | |
| rotational symmetry group | 84 elements. |
| full symmetry group | 168 elements. |
| its presentation c | < r, s, t | t2, sr2s, (r, s), (rt)2, (st)2, r‑1s10r‑30s > |
| C&D number c | R21.40 |
| The statistics marked c are from the published work of Professor Marston Conder. | |
It is self-dual.
It can be rectified to give
It is a member of series β° .
List of regular maps in orientable genus 21.
| Orientable | |
| Non-orientable |