22211320291 has 2 divisors, whose sum is σ = 22211320292. Its totient is φ = 22211320290.

The previous prime is 22211320289. The next prime is 22211320349. The reversal of 22211320291 is 19202311222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22211320291 - 2¹ = 22211320289 is a prime.

Together with 22211320289, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22211320091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11105660145 + 11105660146.

It is an arithmetic number, because the mean of its divisors is an integer number (11105660146).

Almost surely, 2^22211320291 is an apocalyptic number.

22211320291 is a deficient number, since it is larger than the sum of its proper divisors (1).

22211320291 is an equidigital number, since it uses as much as digits as its factorization.

22211320291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 22211320291 in words is "twenty-two billion, two hundred eleven million, three hundred twenty thousand, two hundred ninety-one".