33121112212 has 24 divisors (see below), whose sum is σ = 58076287136. Its totient is φ = 16527919968.

The previous prime is 33121112209. The next prime is 33121112221. The reversal of 33121112212 is 21221112133.

It is a self number, because there is not a number n which added to its sum of digits gives 33121112212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6082363 + ... + 6087805.

Almost surely, 2^33121112212 is an apocalyptic number.

It is an amenable number.

33121112212 is a deficient number, since it is larger than the sum of its proper divisors (24955174924).

33121112212 is a wasteful number, since it uses less digits than its factorization.

33121112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8167 (or 8165 counting only the distinct ones).

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

Adding to 33121112212 its reverse (21221112133), we get a palindrome (54342224345).

The spelling of 33121112212 in words is "thirty-three billion, one hundred twenty-one million, one hundred twelve thousand, two hundred twelve".