12021112004 has 24 divisors (see below), whose sum is σ = 22956581088. Its totient is φ = 5462431040.

The previous prime is 12021112001. The next prime is 12021112007. The reversal of 12021112004 is 40021112021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12021112001) and next prime (12021112007).

It is a self number, because there is not a number n which added to its sum of digits gives 12021112004.

It is not an unprimeable number, because it can be changed into a prime (12021112001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105104 + ... + 187320.

It is an arithmetic number, because the mean of its divisors is an integer number (956524212).

Almost surely, 2^12021112004 is an apocalyptic number.

It is an amenable number.

12021112004 is a deficient number, since it is larger than the sum of its proper divisors (10935469084).

12021112004 is a wasteful number, since it uses less digits than its factorization.

12021112004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85555 (or 85553 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12021112004 its reverse (40021112021), we get a palindrome (52042224025).

The spelling of 12021112004 in words is "twelve billion, twenty-one million, one hundred twelve thousand, four".