111111111111111111111111111111111 = 111,111,111,111,111,120,000,000,000,000,000
1000000000000000000000000000000000000000 + 111111111111111111111111111111111= = 1000000111111111110859875760618596204544
2√111111111111111111111111111111111, or about 21081851067789195.54665929