22021131001 has 2 divisors, whose sum is σ = 22021131002. Its totient is φ = 22021131000.

The previous prime is 22021130987. The next prime is 22021131007. The reversal of 22021131001 is 10013112022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13835405376 + 8185725625 = 117624^2 + 90475^2 .

It is a cyclic number.

It is not a de Polignac number, because 22021131001 - 2¹⁵ = 22021098233 is a prime.

It is not a weakly prime, because it can be changed into another prime (22021131007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010565500 + 11010565501.

It is an arithmetic number, because the mean of its divisors is an integer number (11010565501).

Almost surely, 2^22021131001 is an apocalyptic number.

It is an amenable number.

22021131001 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021131001 is an equidigital number, since it uses as much as digits as its factorization.

22021131001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 22021131001 its reverse (10013112022), we get a palindrome (32034243023).

The spelling of 22021131001 in words is "twenty-two billion, twenty-one million, one hundred thirty-one thousand, one".