12001012012 has 48 divisors (see below), whose sum is σ = 23577069600. Its totient is φ = 5297011200.

The previous prime is 12001011991. The next prime is 12001012031. The reversal of 12001012012 is 21021010021.

It is a self number, because there is not a number n which added to its sum of digits gives 12001012012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 841114 + ... + 855262.

It is an arithmetic number, because the mean of its divisors is an integer number (491188950).

Almost surely, 2^12001012012 is an apocalyptic number.

It is an amenable number.

12001012012 is a deficient number, since it is larger than the sum of its proper divisors (11576057588).

12001012012 is a wasteful number, since it uses less digits than its factorization.

12001012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14722 (or 14720 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12001012012 its reverse (21021010021), we get a palindrome (33022022033).

The spelling of 12001012012 in words is "twelve billion, one million, twelve thousand, twelve".