11222011309 has 2 divisors, whose sum is σ = 11222011310. Its totient is φ = 11222011308.

The previous prime is 11222011291. The next prime is 11222011319. The reversal of 11222011309 is 90311022211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6970580100 + 4251431209 = 83490^2 + 65203^2 .

It is a cyclic number.

It is not a de Polignac number, because 11222011309 - 2⁵ = 11222011277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11222011309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11222011319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611005654 + 5611005655.

It is an arithmetic number, because the mean of its divisors is an integer number (5611005655).

Almost surely, 2^11222011309 is an apocalyptic number.

It is an amenable number.

11222011309 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222011309 is an equidigital number, since it uses as much as digits as its factorization.

11222011309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 11222011309 in words is "eleven billion, two hundred twenty-two million, eleven thousand, three hundred nine".