22148112 has 80 divisors (see below), whose sum is σ = 67674240. Its totient is φ = 6107136.

The previous prime is 22148111. The next prime is 22148131. The reversal of 22148112 is 21184122.

It is a Harshad number since it is a multiple of its sum of digits (21).

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

It is not an unprimeable number, because it can be changed into a prime (22148111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8608 + ... + 10880.

It is an arithmetic number, because the mean of its divisors is an integer number (845928).

Almost surely, 2^22148112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22148112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33837120).

22148112 is an abundant number, since it is smaller than the sum of its proper divisors (45526128).

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

22148112 is a wasteful number, since it uses less digits than its factorization.

22148112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2320 (or 2314 counting only the distinct ones).

The product of its digits is 256, while the sum is 21.

The square root of 22148112 is about 4706.1780671794. The cubic root of 22148112 is about 280.8313387804.

The spelling of 22148112 in words is "twenty-two million, one hundred forty-eight thousand, one hundred twelve".