22662032381 has 2 divisors, whose sum is σ = 22662032382. Its totient is φ = 22662032380.

The previous prime is 22662032333. The next prime is 22662032417. The reversal of 22662032381 is 18323026622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12918368281 + 9743664100 = 113659^2 + 98710^2 .

It is a cyclic number.

It is not a de Polignac number, because 22662032381 - 2¹⁴ = 22662015997 is a prime.

It is a super-2 number, since 2×22662032381² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22662032581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11331016190 + 11331016191.

It is an arithmetic number, because the mean of its divisors is an integer number (11331016191).

Almost surely, 2^22662032381 is an apocalyptic number.

It is an amenable number.

22662032381 is a deficient number, since it is larger than the sum of its proper divisors (1).

22662032381 is an equidigital number, since it uses as much as digits as its factorization.

22662032381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 22662032381 in words is "twenty-two billion, six hundred sixty-two million, thirty-two thousand, three hundred eighty-one".