22256432012 has 12 divisors (see below), whose sum is σ = 39120338040. Its totient is φ = 11079192576.

The previous prime is 22256431997. The next prime is 22256432047. The reversal of 22256432012 is 21023465222.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12254837 + ... + 12256652.

It is an arithmetic number, because the mean of its divisors is an integer number (3260028170).

Almost surely, 2^22256432012 is an apocalyptic number.

It is an amenable number.

22256432012 is a deficient number, since it is larger than the sum of its proper divisors (16863906028).

22256432012 is a wasteful number, since it uses less digits than its factorization.

22256432012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24511720 (or 24511718 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 22256432012 its reverse (21023465222), we get a palindrome (43279897234).

The spelling of 22256432012 in words is "twenty-two billion, two hundred fifty-six million, four hundred thirty-two thousand, twelve".