12001001133 has 16 divisors (see below), whose sum is σ = 17464882176. Its totient is φ = 7269633840.

The previous prime is 12001001113. The next prime is 12001001143. The reversal of 12001001133 is 33110010021.

It is not a de Polignac number, because 12001001133 - 2⁶ = 12001001069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001001113) 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 15 ways as a sum of consecutive naturals, for example, 25941 + ... + 157082.

It is an arithmetic number, because the mean of its divisors is an integer number (1091555136).

Almost surely, 2^12001001133 is an apocalyptic number.

It is an amenable number.

12001001133 is a deficient number, since it is larger than the sum of its proper divisors (5463881043).

12001001133 is a wasteful number, since it uses less digits than its factorization.

12001001133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185024.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 12001001133 its reverse (33110010021), we get a palindrome (45111011154).

The spelling of 12001001133 in words is "twelve billion, one million, one thousand, one hundred thirty-three".