22130109961 has 2 divisors, whose sum is σ = 22130109962. Its totient is φ = 22130109960.

The previous prime is 22130109959. The next prime is 22130110033. The reversal of 22130109961 is 16990103122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18690991225 + 3439118736 = 136715^2 + 58644^2 .

It is a cyclic number.

It is not a de Polignac number, because 22130109961 - 2¹ = 22130109959 is a prime.

Together with 22130109959, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22130109901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11065054980 + 11065054981.

It is an arithmetic number, because the mean of its divisors is an integer number (11065054981).

Almost surely, 2^22130109961 is an apocalyptic number.

It is an amenable number.

22130109961 is a deficient number, since it is larger than the sum of its proper divisors (1).

22130109961 is an equidigital number, since it uses as much as digits as its factorization.

22130109961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 34.

The spelling of 22130109961 in words is "twenty-two billion, one hundred thirty million, one hundred nine thousand, nine hundred sixty-one".