12012333312 has 72 divisors (see below), whose sum is σ = 36537530176. Its totient is φ = 3432093696.

The previous prime is 12012333209. The next prime is 12012333329. The reversal of 12012333312 is 21333321021.

12012333312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1111843 + ... + 1122594.

Almost surely, 2^12012333312 is an apocalyptic number.

12012333312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12012333312 is an abundant number, since it is smaller than the sum of its proper divisors (24525196864).

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

12012333312 is an equidigital number, since it uses as much as digits as its factorization.

12012333312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2234463 (or 2234449 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 12012333312 its reverse (21333321021), we get a palindrome (33345654333).

The spelling of 12012333312 in words is "twelve billion, twelve million, three hundred thirty-three thousand, three hundred twelve".