22112357 has 4 divisors (see below), whose sum is σ = 22415340. Its totient is φ = 21809376.

The previous prime is 22112353. The next prime is 22112369. The reversal of 22112357 is 75321122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8797156 + 13315201 = 2966^2 + 3649^2 .

It is a cyclic number.

It is not a de Polignac number, because 22112357 - 2² = 22112353 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112353) 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 in 3 ways as a sum of consecutive naturals, for example, 151382 + ... + 151527.

It is an arithmetic number, because the mean of its divisors is an integer number (5603835).

Almost surely, 2^22112357 is an apocalyptic number.

It is an amenable number.

22112357 is a deficient number, since it is larger than the sum of its proper divisors (302983).

22112357 is an equidigital number, since it uses as much as digits as its factorization.

22112357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302982.

The product of its digits is 840, while the sum is 23.

The square root of 22112357 is about 4702.3778027717. The cubic root of 22112357 is about 280.6801365365.

Adding to 22112357 its reverse (75321122), we get a palindrome (97433479).

The spelling of 22112357 in words is "twenty-two million, one hundred twelve thousand, three hundred fifty-seven".