12001020010012 has 24 divisors (see below), whose sum is σ = 22965458754672. Its totient is φ = 5442051820800.

The previous prime is 12001020009991. The next prime is 12001020010079. The reversal of 12001020010012 is 21001002010021.

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, 323913133 + ... + 323950180.

It is an arithmetic number, because the mean of its divisors is an integer number (956894114778).

Almost surely, 2^{12001020010012} is an apocalyptic number.

It is an amenable number.

12001020010012 is a deficient number, since it is larger than the sum of its proper divisors (10964438744660).

12001020010012 is a wasteful number, since it uses less digits than its factorization.

12001020010012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647863749 (or 647863747 counting only the distinct ones).

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

Adding to 12001020010012 its reverse (21001002010021), we get a palindrome (33002022020033).

Subtracting 12001020010012 from its reverse (21001002010021), we obtain a square (8999982000009 = 2999997²).

The spelling of 12001020010012 in words is "twelve trillion, one billion, twenty million, ten thousand, twelve".