22102331 has 2 divisors, whose sum is σ = 22102332. Its totient is φ = 22102330.

The previous prime is 22102279. The next prime is 22102369. The reversal of 22102331 is 13320122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22102331 - 2²² = 17908027 is a prime.

It is a super-2 number, since 2×22102331² = 977026071267122, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (22102631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11051165 + 11051166.

It is an arithmetic number, because the mean of its divisors is an integer number (11051166).

Almost surely, 2^22102331 is an apocalyptic number.

22102331 is a deficient number, since it is larger than the sum of its proper divisors (1).

22102331 is an equidigital number, since it uses as much as digits as its factorization.

22102331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 22102331 is about 4701.3116254935. The cubic root of 22102331 is about 280.6377089100.

Adding to 22102331 its reverse (13320122), we get a palindrome (35422453).

The spelling of 22102331 in words is "twenty-two million, one hundred two thousand, three hundred thirty-one".