22111112012012 has 12 divisors (see below), whose sum is σ = 38694923139600. Its totient is φ = 11055419686416.

The previous prime is 22111112011973. The next prime is 22111112012021. The reversal of 22111112012012 is 21021021111122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33714512 + ... + 34364087.

It is an arithmetic number, because the mean of its divisors is an integer number (3224576928300).

Almost surely, 2^{22111112012012} is an apocalyptic number.

It is an amenable number.

22111112012012 is a deficient number, since it is larger than the sum of its proper divisors (16583811127588).

22111112012012 is a wasteful number, since it uses less digits than its factorization.

22111112012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68159800 (or 68159798 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22111112012012 its reverse (21021021111122), we get a palindrome (43132133123134).

The spelling of 22111112012012 in words is "twenty-two trillion, one hundred eleven billion, one hundred twelve million, twelve thousand, twelve".