22131026507 has 2 divisors, whose sum is σ = 22131026508. Its totient is φ = 22131026506.

The previous prime is 22131026429. The next prime is 22131026521. The reversal of 22131026507 is 70562013122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22131026507 - 2¹⁴ = 22131010123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22131026507.

It is not a weakly prime, because it can be changed into another prime (22131026597) 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, 11065513253 + 11065513254.

It is an arithmetic number, because the mean of its divisors is an integer number (11065513254).

Almost surely, 2^22131026507 is an apocalyptic number.

22131026507 is a deficient number, since it is larger than the sum of its proper divisors (1).

22131026507 is an equidigital number, since it uses as much as digits as its factorization.

22131026507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

Adding to 22131026507 its reverse (70562013122), we get a palindrome (92693039629).

The spelling of 22131026507 in words is "twenty-two billion, one hundred thirty-one million, twenty-six thousand, five hundred seven".