22211010961 has 2 divisors, whose sum is σ = 22211010962. Its totient is φ = 22211010960.

The previous prime is 22211010959. The next prime is 22211011021. The reversal of 22211010961 is 16901011222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19361052736 + 2849958225 = 139144^2 + 53385^2 .

It is a cyclic number.

It is not a de Polignac number, because 22211010961 - 2¹ = 22211010959 is a prime.

Together with 22211010959, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22211080961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11105505480 + 11105505481.

It is an arithmetic number, because the mean of its divisors is an integer number (11105505481).

Almost surely, 2^22211010961 is an apocalyptic number.

It is an amenable number.

22211010961 is a deficient number, since it is larger than the sum of its proper divisors (1).

22211010961 is an equidigital number, since it uses as much as digits as its factorization.

22211010961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 22211010961 in words is "twenty-two billion, two hundred eleven million, ten thousand, nine hundred sixty-one".