22126651 has 2 divisors, whose sum is σ = 22126652. Its totient is φ = 22126650.

The previous prime is 22126631. The next prime is 22126661. The reversal of 22126651 is 15662122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22126651 - 2⁵ = 22126619 is a prime.

It is not a weakly prime, because it can be changed into another prime (22126631) 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, 11063325 + 11063326.

It is an arithmetic number, because the mean of its divisors is an integer number (11063326).

Almost surely, 2^22126651 is an apocalyptic number.

22126651 is a deficient number, since it is larger than the sum of its proper divisors (1).

22126651 is an equidigital number, since it uses as much as digits as its factorization.

22126651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 25.

The square root of 22126651 is about 4703.8974266028. The cubic root of 22126651 is about 280.7406031448.

Adding to 22126651 its reverse (15662122), we get a palindrome (37788773).

The spelling of 22126651 in words is "twenty-two million, one hundred twenty-six thousand, six hundred fifty-one".