12222112112 has 20 divisors (see below), whose sum is σ = 27063248496. Its totient is φ = 5238048000.

The previous prime is 12222112103. The next prime is 12222112139. The reversal of 12222112112 is 21121122221.

12222112112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

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 3 ways as a sum of consecutive naturals, for example, 54562889 + ... + 54563112.

Almost surely, 2^12222112112 is an apocalyptic number.

It is an amenable number.

12222112112 is an abundant number, since it is smaller than the sum of its proper divisors (14841136384).

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

12222112112 is a wasteful number, since it uses less digits than its factorization.

12222112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109126016 (or 109126010 counting only the distinct ones).

The product of its digits is 64, while the sum is 17.

Adding to 12222112112 its reverse (21121122221), we get a palindrome (33343234333).

The spelling of 12222112112 in words is "twelve billion, two hundred twenty-two million, one hundred twelve thousand, one hundred twelve".