12001010012 has 24 divisors (see below), whose sum is σ = 21921035136. Its totient is φ = 5738003568.

The previous prime is 12001009963. The next prime is 12001010029. The reversal of 12001010012 is 21001010021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351983 + ... + 384569.

It is an arithmetic number, because the mean of its divisors is an integer number (913376464).

Almost surely, 2^12001010012 is an apocalyptic number.

It is an amenable number.

12001010012 is a deficient number, since it is larger than the sum of its proper divisors (9920025124).

12001010012 is a wasteful number, since it uses less digits than its factorization.

12001010012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36617 (or 36615 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 12001010012 its reverse (21001010021), we get a palindrome (33002020033).

Subtracting 12001010012 from its reverse (21001010021), we obtain a palindrome (9000000009).

The spelling of 12001010012 in words is "twelve billion, one million, ten thousand, twelve".