22122112 has 16 divisors (see below), whose sum is σ = 44071650. Its totient is φ = 11060992.

The previous prime is 22122103. The next prime is 22122169. The reversal of 22122112 is 21122122.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 22052416 + 69696 = 4696^2 + 264^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 22122092 and 22122101.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86287 + ... + 86542.

Almost surely, 2^22122112 is an apocalyptic number.

It is an amenable number.

22122112 is a deficient number, since it is larger than the sum of its proper divisors (21949538).

22122112 is an equidigital number, since it uses as much as digits as its factorization.

22122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172843 (or 172831 counting only the distinct ones).

The product of its digits is 32, while the sum is 13.

The square root of 22122112 is about 4703.4149296017. The cubic root of 22122112 is about 280.7214050483.

Adding to 22122112 its reverse (21122122), we get a palindrome (43244234).

The spelling of 22122112 in words is "twenty-two million, one hundred twenty-two thousand, one hundred twelve".