12222120211112 has 64 divisors (see below), whose sum is σ = 26320859867520. Its totient is φ = 5211957788928.

The previous prime is 12222120211061. The next prime is 12222120211127. The reversal of 12222120211112 is 21111202122221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21752498 + ... + 22307294.

It is an arithmetic number, because the mean of its divisors is an integer number (411263435430).

Almost surely, 2^{12222120211112} is an apocalyptic number.

It is an amenable number.

12222120211112 is an abundant number, since it is smaller than the sum of its proper divisors (14098739656408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12222120211112 is a wasteful number, since it uses less digits than its factorization.

12222120211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556770 (or 556766 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12222120211112 its reverse (21111202122221), we get a palindrome (33333322333333).

The spelling of 12222120211112 in words is "twelve trillion, two hundred twenty-two billion, one hundred twenty million, two hundred eleven thousand, one hundred twelve".