22244251 has 2 divisors, whose sum is σ = 22244252. Its totient is φ = 22244250.

The previous prime is 22244227. The next prime is 22244293. The reversal of 22244251 is 15244222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22244251 - 2⁵ = 22244219 is a prime.

It is not a weakly prime, because it can be changed into another prime (22244221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11122125 + 11122126.

It is an arithmetic number, because the mean of its divisors is an integer number (11122126).

Almost surely, 2^22244251 is an apocalyptic number.

22244251 is a deficient number, since it is larger than the sum of its proper divisors (1).

22244251 is an equidigital number, since it uses as much as digits as its factorization.

22244251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1280, while the sum is 22.

The square root of 22244251 is about 4716.3811338780. The cubic root of 22244251 is about 281.2370900412.

Adding to 22244251 its reverse (15244222), we get a palindrome (37488473).

The spelling of 22244251 in words is "twenty-two million, two hundred forty-four thousand, two hundred fifty-one".