22252151 has 2 divisors, whose sum is σ = 22252152. Its totient is φ = 22252150.

The previous prime is 22252147. The next prime is 22252157. The reversal of 22252151 is 15125222.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22252151 - 2² = 22252147 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22252157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11126075 + 11126076.

It is an arithmetic number, because the mean of its divisors is an integer number (11126076).

Almost surely, 2^22252151 is an apocalyptic number.

22252151 is a deficient number, since it is larger than the sum of its proper divisors (1).

22252151 is an equidigital number, since it uses as much as digits as its factorization.

22252151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 400, while the sum is 20.

The square root of 22252151 is about 4717.2185660620. The cubic root of 22252151 is about 281.2703796920.

Adding to 22252151 its reverse (15125222), we get a palindrome (37377373).

The spelling of 22252151 in words is "twenty-two million, two hundred fifty-two thousand, one hundred fifty-one".