22132012 has 12 divisors (see below), whose sum is σ = 44264080. Its totient is φ = 9485136.

The previous prime is 22131983. The next prime is 22132027. The reversal of 22132012 is 21023122.

22132012 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 22131983 and 22132001.

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, 395187 + ... + 395242.

Almost surely, 2^22132012 is an apocalyptic number.

It is an amenable number.

22132012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22132012 is a wasteful number, since it uses less digits than its factorization.

22132012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790440 (or 790438 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 22132012 is about 4704.4672386998. The cubic root of 22132012 is about 280.7632745805.

Adding to 22132012 its reverse (21023122), we get a palindrome (43155134).

It can be divided in two parts, 2213 and 2012, that added together give a square (4225 = 65²).

The spelling of 22132012 in words is "twenty-two million, one hundred thirty-two thousand, twelve".