33112212112 has 20 divisors (see below), whose sum is σ = 73319898496. Its totient is φ = 14190948000.

The previous prime is 33112212101. The next prime is 33112212121. The reversal of 33112212112 is 21121221133.

It is a self number, because there is not a number n which added to its sum of digits gives 33112212112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147822264 + ... + 147822487.

Almost surely, 2^33112212112 is an apocalyptic number.

It is an amenable number.

33112212112 is an abundant number, since it is smaller than the sum of its proper divisors (40207686384).

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

33112212112 is a wasteful number, since it uses less digits than its factorization.

33112212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295644766 (or 295644760 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

Adding to 33112212112 its reverse (21121221133), we get a palindrome (54233433245).

The spelling of 33112212112 in words is "thirty-three billion, one hundred twelve million, two hundred twelve thousand, one hundred twelve".