12001033312 has 48 divisors (see below), whose sum is σ = 25264667232. Its totient is φ = 5591603200.

The previous prime is 12001033309. The next prime is 12001033313. The reversal of 12001033312 is 21333010021.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001033313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54268 + ... + 164155.

It is an arithmetic number, because the mean of its divisors is an integer number (526347234).

Almost surely, 2^12001033312 is an apocalyptic number.

It is an amenable number.

12001033312 is an abundant number, since it is smaller than the sum of its proper divisors (13263633920).

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

12001033312 is a wasteful number, since it uses less digits than its factorization.

12001033312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218551 (or 218543 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 12001033312 its reverse (21333010021), we get a palindrome (33334043333).

The spelling of 12001033312 in words is "twelve billion, one million, thirty-three thousand, three hundred twelve".