22421132231 has 2 divisors, whose sum is σ = 22421132232. Its totient is φ = 22421132230.

The previous prime is 22421132213. The next prime is 22421132281. The reversal of 22421132231 is 13223112422.

Together with previous prime (22421132213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22421132231 - 2²² = 22416937927 is a prime.

It is a super-2 number, since 2×22421132231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22421132197 and 22421132206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22421132281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11210566115 + 11210566116.

It is an arithmetic number, because the mean of its divisors is an integer number (11210566116).

Almost surely, 2^22421132231 is an apocalyptic number.

22421132231 is a deficient number, since it is larger than the sum of its proper divisors (1).

22421132231 is an equidigital number, since it uses as much as digits as its factorization.

22421132231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 23.

Adding to 22421132231 its reverse (13223112422), we get a palindrome (35644244653).

The spelling of 22421132231 in words is "twenty-two billion, four hundred twenty-one million, one hundred thirty-two thousand, two hundred thirty-one".