This graph is the complement of the Johnson graph $\mathrm{J}(22,2)$.
Number of vertices: | $231$ |
Diameter: | $2$ |
Intersection array: | $\{190,36;1,171\}$ |
Spectrum: | $190^1 1^{209} (-19)^{21}$ |
Automorphism group: | $\mathrm{S}_{22}$ |
Distance-transitive: | Yes |
Primitive |