22105331 has 2 divisors, whose sum is σ = 22105332. Its totient is φ = 22105330.

The previous prime is 22105327. The next prime is 22105339. The reversal of 22105331 is 13350122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22105331 - 2² = 22105327 is a prime.

It is a super-2 number, since 2×22105331² = 977291317239122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22105339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11052665 + 11052666.

It is an arithmetic number, because the mean of its divisors is an integer number (11052666).

Almost surely, 2^22105331 is an apocalyptic number.

22105331 is a deficient number, since it is larger than the sum of its proper divisors (1).

22105331 is an equidigital number, since it uses as much as digits as its factorization.

22105331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 22105331 is about 4701.6306745639. The cubic root of 22105331 is about 280.6504055352.

Adding to 22105331 its reverse (13350122), we get a palindrome (35455453).

The spelling of 22105331 in words is "twenty-two million, one hundred five thousand, three hundred thirty-one".