22000325381 has 2 divisors, whose sum is σ = 22000325382. Its totient is φ = 22000325380.

The previous prime is 22000325351. The next prime is 22000325383. The reversal of 22000325381 is 18352300022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18348057025 + 3652268356 = 135455^2 + 60434^2 .

It is a cyclic number.

It is not a de Polignac number, because 22000325381 - 2¹⁸ = 22000063237 is a prime.

It is a super-2 number, since 2×22000325381² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 22000325383, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22000325381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22000325383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000162690 + 11000162691.

It is an arithmetic number, because the mean of its divisors is an integer number (11000162691).

Almost surely, 2^22000325381 is an apocalyptic number.

It is an amenable number.

22000325381 is a deficient number, since it is larger than the sum of its proper divisors (1).

22000325381 is an equidigital number, since it uses as much as digits as its factorization.

22000325381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 22000325381 in words is "twenty-two billion, three hundred twenty-five thousand, three hundred eighty-one".