12000211121 has 8 divisors (see below), whose sum is σ = 12635133600. Its totient is φ = 11365621920.

The previous prime is 12000211117. The next prime is 12000211123. The reversal of 12000211121 is 12111200021.

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 12000211121 - 2² = 12000211117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12000211123) 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, 7631 + ... + 155108.

It is an arithmetic number, because the mean of its divisors is an integer number (1579391700).

Almost surely, 2^12000211121 is an apocalyptic number.

It is an amenable number.

12000211121 is a deficient number, since it is larger than the sum of its proper divisors (634922479).

12000211121 is a wasteful number, since it uses less digits than its factorization.

12000211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166639.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12000211121 its reverse (12111200021), we get a palindrome (24111411142).

The spelling of 12000211121 in words is "twelve billion, two hundred eleven thousand, one hundred twenty-one".