12133011212 has 12 divisors (see below), whose sum is σ = 24266022480. Its totient is φ = 5199861936.

The previous prime is 12133011211. The next prime is 12133011217. The reversal of 12133011212 is 21211033121.

12133011212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

12133011212 is an admirable number.

It is a super-2 number, since 2×12133011212² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12133011211) by changing a digit.

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, 216660887 + ... + 216660942.

It is an arithmetic number, because the mean of its divisors is an integer number (2022168540).

Almost surely, 2^12133011212 is an apocalyptic number.

It is an amenable number.

12133011212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12133011212 is a wasteful number, since it uses less digits than its factorization.

12133011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433321840 (or 433321838 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12133011212 its reverse (21211033121), we get a palindrome (33344044333).

The spelling of 12133011212 in words is "twelve billion, one hundred thirty-three million, eleven thousand, two hundred twelve".