This is one of two self-complementary, rank-3 strongly-regular graphs with parameters $(121,60,29,30)$, the other being the Peisert graph on 121 vertices.
Number of vertices: | $121$ |
Diameter: | $2$ |
Intersection array: | $\{60,30;1,30\}$ |
Spectrum: | $60^1 5^{60} (-6)^{60}$ |
Automorphism group: | $11^2:(5 \times \mathrm{D}_{24})$ |
Distance-transitive: | Yes |
Primitive |