22123112 has 32 divisors (see below), whose sum is σ = 46029600. Its totient is φ = 9883200.

The previous prime is 22123097. The next prime is 22123133. The reversal of 22123112 is 21132122.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3062 + ... + 7322.

It is an arithmetic number, because the mean of its divisors is an integer number (1438425).

Almost surely, 2^22123112 is an apocalyptic number.

22123112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22123112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23014800).

22123112 is an abundant number, since it is smaller than the sum of its proper divisors (23906488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22123112 is a wasteful number, since it uses less digits than its factorization.

22123112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4337 (or 4333 counting only the distinct ones).

The product of its digits is 48, while the sum is 14.

The square root of 22123112 is about 4703.5212341394. The cubic root of 22123112 is about 280.7256348611.

Adding to 22123112 its reverse (21132122), we get a palindrome (43255234).

The spelling of 22123112 in words is "twenty-two million, one hundred twenty-three thousand, one hundred twelve".