22204012 has 6 divisors (see below), whose sum is σ = 38857028. Its totient is φ = 11102004.

The previous prime is 22204009. The next prime is 22204051. The reversal of 22204012 is 21040222.

It is a super-2 number, since 2×22204012² = 986036297792288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22203983 and 22204001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775498 + ... + 2775505.

Almost surely, 2^22204012 is an apocalyptic number.

It is an amenable number.

22204012 is a deficient number, since it is larger than the sum of its proper divisors (16653016).

22204012 is a wasteful number, since it uses less digits than its factorization.

22204012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5551007 (or 5551005 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 22204012 is about 4712.1133263112. The cubic root of 22204012 is about 281.0674052994.

Adding to 22204012 its reverse (21040222), we get a palindrome (43244234).

The spelling of 22204012 in words is "twenty-two million, two hundred four thousand, twelve".