33112211013212 has 12 divisors (see below), whose sum is σ = 58644518301096. Its totient is φ = 16356634355760.

The previous prime is 33112211013187. The next prime is 33112211013257. The reversal of 33112211013212 is 21231011221133.

It is a happy number.

It is a congruent number.

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, 49867787339 + ... + 49867788002.

It is an arithmetic number, because the mean of its divisors is an integer number (4887043191758).

Almost surely, 2^{33112211013212} is an apocalyptic number.

It is an amenable number.

33112211013212 is a deficient number, since it is larger than the sum of its proper divisors (25532307287884).

33112211013212 is a wasteful number, since it uses less digits than its factorization.

33112211013212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99735575428 (or 99735575426 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 33112211013212 its reverse (21231011221133), we get a palindrome (54343222234345).

The spelling of 33112211013212 in words is "thirty-three trillion, one hundred twelve billion, two hundred eleven million, thirteen thousand, two hundred twelve".