22128112 has 20 divisors (see below), whose sum is σ = 43256160. Its totient is φ = 10965248.

The previous prime is 22128107. The next prime is 22128121. The reversal of 22128112 is 21182122.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 22128112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4312 + ... + 7927.

It is an arithmetic number, because the mean of its divisors is an integer number (2162808).

Almost surely, 2^22128112 is an apocalyptic number.

It is an amenable number.

22128112 is a deficient number, since it is larger than the sum of its proper divisors (21128048).

22128112 is a wasteful number, since it uses less digits than its factorization.

22128112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12360 (or 12354 counting only the distinct ones).

The product of its digits is 128, while the sum is 19.

The square root of 22128112 is about 4704.0527207930. The cubic root of 22128112 is about 280.7467820132.

The spelling of 22128112 in words is "twenty-two million, one hundred twenty-eight thousand, one hundred twelve".