22021112222012 has 24 divisors (see below), whose sum is σ = 40272157744896. Its totient is φ = 10525677584688.

The previous prime is 22021112222003. The next prime is 22021112222023. The reversal of 22021112222012 is 21022221112022.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1362010238 + ... + 1362026405.

It is an arithmetic number, because the mean of its divisors is an integer number (1678006572704).

Almost surely, 2^{22021112222012} is an apocalyptic number.

It is an amenable number.

22021112222012 is a deficient number, since it is larger than the sum of its proper divisors (18251045522884).

22021112222012 is a wasteful number, since it uses less digits than its factorization.

22021112222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2724036737 (or 2724036735 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22021112222012 its reverse (21022221112022), we get a palindrome (43043333334034).

The spelling of 22021112222012 in words is "twenty-two trillion, twenty-one billion, one hundred twelve million, two hundred twenty-two thousand, twelve".