22002251231 has 2 divisors, whose sum is σ = 22002251232. Its totient is φ = 22002251230.

The previous prime is 22002251197. The next prime is 22002251263. The reversal of 22002251231 is 13215220022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22002251231 - 2¹⁴ = 22002234847 is a prime.

It is a super-2 number, since 2×22002251231² (a number of 21 digits) contains 22 as substring.

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 (22002254231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11001125615 + 11001125616.

It is an arithmetic number, because the mean of its divisors is an integer number (11001125616).

Almost surely, 2^22002251231 is an apocalyptic number.

22002251231 is a deficient number, since it is larger than the sum of its proper divisors (1).

22002251231 is an equidigital number, since it uses as much as digits as its factorization.

22002251231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 22002251231 its reverse (13215220022), we get a palindrome (35217471253).

The spelling of 22002251231 in words is "twenty-two billion, two million, two hundred fifty-one thousand, two hundred thirty-one".