12133013212 has 12 divisors (see below), whose sum is σ = 21806632120. Its totient is φ = 5902546896.

The previous prime is 12133013209. The next prime is 12133013219. The reversal of 12133013212 is 21231033121.

It is a self number, because there is not a number n which added to its sum of digits gives 12133013212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12133013219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40989762 + ... + 40990057.

Almost surely, 2^12133013212 is an apocalyptic number.

It is an amenable number.

12133013212 is a deficient number, since it is larger than the sum of its proper divisors (9673618908).

12133013212 is a wasteful number, since it uses less digits than its factorization.

12133013212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81979860 (or 81979858 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12133013212 its reverse (21231033121), we get a palindrome (33364046333).

The spelling of 12133013212 in words is "twelve billion, one hundred thirty-three million, thirteen thousand, two hundred twelve".