22131131279 has 2 divisors, whose sum is σ = 22131131280. Its totient is φ = 22131131278.

The previous prime is 22131131263. The next prime is 22131131329. The reversal of 22131131279 is 97213113122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22131131279 - 2⁴ = 22131131263 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22131131579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11065565639 + 11065565640.

It is an arithmetic number, because the mean of its divisors is an integer number (11065565640).

Almost surely, 2^22131131279 is an apocalyptic number.

22131131279 is a deficient number, since it is larger than the sum of its proper divisors (1).

22131131279 is an equidigital number, since it uses as much as digits as its factorization.

22131131279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 32.

The spelling of 22131131279 in words is "twenty-two billion, one hundred thirty-one million, one hundred thirty-one thousand, two hundred seventy-nine".