12000120121 has 8 divisors (see below), whose sum is σ = 13099885344. Its totient is φ = 10901829120.

The previous prime is 12000120101. The next prime is 12000120161. The reversal of 12000120121 is 12102100021.

12000120121 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 12000120121 - 2¹⁹ = 11999595833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12000120098 and 12000120107.

It is not an unprimeable number, because it can be changed into a prime (12000120101) 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, 351496 + ... + 384121.

It is an arithmetic number, because the mean of its divisors is an integer number (1637485668).

Almost surely, 2^12000120121 is an apocalyptic number.

12000120121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12000120121 is a deficient number, since it is larger than the sum of its proper divisors (1099765223).

12000120121 is a wasteful number, since it uses less digits than its factorization.

12000120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737111.

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

Adding to 12000120121 its reverse (12102100021), we get a palindrome (24102220142).

The spelling of 12000120121 in words is "twelve billion, one hundred twenty thousand, one hundred twenty-one".