22662021131 has 2 divisors, whose sum is σ = 22662021132. Its totient is φ = 22662021130.

The previous prime is 22662021103. The next prime is 22662021281. The reversal of 22662021131 is 13112026622.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22662021131 - 2¹⁴ = 22662004747 is a prime.

It is a super-2 number, since 2×22662021131² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22662021131.

It is not a weakly prime, because it can be changed into another prime (22662021731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11331010565 + 11331010566.

It is an arithmetic number, because the mean of its divisors is an integer number (11331010566).

Almost surely, 2^22662021131 is an apocalyptic number.

22662021131 is a deficient number, since it is larger than the sum of its proper divisors (1).

22662021131 is an equidigital number, since it uses as much as digits as its factorization.

22662021131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 22662021131 its reverse (13112026622), we get a palindrome (35774047753).

The spelling of 22662021131 in words is "twenty-two billion, six hundred sixty-two million, twenty-one thousand, one hundred thirty-one".