12004012004 has 24 divisors (see below), whose sum is σ = 21224224056. Its totient is φ = 5940000000.

The previous prime is 12004011991. The next prime is 12004012039. The reversal of 12004012004 is 40021040021.

It can be written as a sum of positive squares in 4 ways, for example, as 8464000000 + 3540012004 = 92000^2 + 59498^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12004012004.

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, 1207454 + ... + 1217354.

It is an arithmetic number, because the mean of its divisors is an integer number (884342669).

Almost surely, 2^12004012004 is an apocalyptic number.

It is an amenable number.

12004012004 is a deficient number, since it is larger than the sum of its proper divisors (9220212052).

12004012004 is a wasteful number, since it uses less digits than its factorization.

12004012004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13007 (or 13005 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12004012004 its reverse (40021040021), we get a palindrome (52025052025).

The spelling of 12004012004 in words is "twelve billion, four million, twelve thousand, four".