12004240121 has 8 divisors (see below), whose sum is σ = 12199856064. Its totient is φ = 11809108080.

The previous prime is 12004240111. The next prime is 12004240207. The reversal of 12004240121 is 12104240021.

12004240121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12004240121 - 2²² = 12000045817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12004240121.

It is not an unprimeable number, because it can be changed into a prime (12004240111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70790 + ... + 170351.

It is an arithmetic number, because the mean of its divisors is an integer number (1524982008).

Almost surely, 2^12004240121 is an apocalyptic number.

It is an amenable number.

12004240121 is a deficient number, since it is larger than the sum of its proper divisors (195615943).

12004240121 is an equidigital number, since it uses as much as digits as its factorization.

12004240121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241951.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12004240121 its reverse (12104240021), we get a palindrome (24108480142).

The spelling of 12004240121 in words is "twelve billion, four million, two hundred forty thousand, one hundred twenty-one".