22211203309 has 2 divisors, whose sum is σ = 22211203310. Its totient is φ = 22211203308.

The previous prime is 22211203253. The next prime is 22211203337. The reversal of 22211203309 is 90330211222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18987462025 + 3223741284 = 137795^2 + 56778^2 .

It is a cyclic number.

It is not a de Polignac number, because 22211203309 - 2⁷ = 22211203181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22211203379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11105601654 + 11105601655.

It is an arithmetic number, because the mean of its divisors is an integer number (11105601655).

Almost surely, 2^22211203309 is an apocalyptic number.

It is an amenable number.

22211203309 is a deficient number, since it is larger than the sum of its proper divisors (1).

22211203309 is an equidigital number, since it uses as much as digits as its factorization.

22211203309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 22211203309 in words is "twenty-two billion, two hundred eleven million, two hundred three thousand, three hundred nine".