22202012 has 12 divisors (see below), whose sum is σ = 44404080. Its totient is φ = 9515136.

The previous prime is 22201999. The next prime is 22202021. The reversal of 22202012 is 21020222.

22202012 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 22201984 and 22202002.

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, 396437 + ... + 396492.

It is an arithmetic number, because the mean of its divisors is an integer number (3700340).

Almost surely, 2^22202012 is an apocalyptic number.

It is an amenable number.

22202012 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.

22202012 is a wasteful number, since it uses less digits than its factorization.

22202012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792940 (or 792938 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 22202012 is about 4711.9011025275. The cubic root of 22202012 is about 281.0589661085.

Adding to 22202012 its reverse (21020222), we get a palindrome (43222234).

The spelling of 22202012 in words is "twenty-two million, two hundred two thousand, twelve".