12012133213 has 16 divisors (see below), whose sum is σ = 12464559360. Its totient is φ = 11566691136.

The previous prime is 12012133171. The next prime is 12012133267. The reversal of 12012133213 is 31233121021.

It is a cyclic number.

It is not a de Polignac number, because 12012133213 - 2²⁹ = 11475262301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012133813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5996070 + ... + 5998072.

It is an arithmetic number, because the mean of its divisors is an integer number (779034960).

Almost surely, 2^12012133213 is an apocalyptic number.

It is an amenable number.

12012133213 is a deficient number, since it is larger than the sum of its proper divisors (452426147).

12012133213 is a wasteful number, since it uses less digits than its factorization.

12012133213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3636.

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

Adding to 12012133213 its reverse (31233121021), we get a palindrome (43245254234).

The spelling of 12012133213 in words is "twelve billion, twelve million, one hundred thirty-three thousand, two hundred thirteen".