22115132 has 12 divisors (see below), whose sum is σ = 41678616. Its totient is φ = 10206960.

The previous prime is 22115129. The next prime is 22115143. The reversal of 22115132 is 23151122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22115132.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 212594 + ... + 212697.

It is an arithmetic number, because the mean of its divisors is an integer number (3473218).

Almost surely, 2^22115132 is an apocalyptic number.

It is an amenable number.

22115132 is a deficient number, since it is larger than the sum of its proper divisors (19563484).

22115132 is a wasteful number, since it uses less digits than its factorization.

22115132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425308 (or 425306 counting only the distinct ones).

The product of its digits is 120, while the sum is 17.

The square root of 22115132 is about 4702.6728570038. The cubic root of 22115132 is about 280.6918774046.

Adding to 22115132 its reverse (23151122), we get a palindrome (45266254).

The spelling of 22115132 in words is "twenty-two million, one hundred fifteen thousand, one hundred thirty-two".