This is one of two self-complementary, rank-3 strongly regular graphs with parameters $(2209,1104,551,552)$, the other being the Paley graph $P_{2209}$.
Number of vertices: | $2209$ |
Diameter: | $2$ |
Intersection array: | $\{1104,552;1,552\}$ |
Spectrum: | $1104^1 23^{1104} (-24)^{1104}$ |
Automorphism group: | $47^2:552:2$ |
Distance-transitive: | Yes |
Primitive |