12000200220121 has 4 divisors (see below), whose sum is σ = 12000332438272. Its totient is φ = 12000068001972.

The previous prime is 12000200220103. The next prime is 12000200220137. The reversal of 12000200220121 is 12102200200021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12000200220121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12000200220101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65972841 + ... + 66154486.

It is an arithmetic number, because the mean of its divisors is an integer number (3000083109568).

Almost surely, 2^{12000200220121} is an apocalyptic number.

It is an amenable number.

12000200220121 is a deficient number, since it is larger than the sum of its proper divisors (132218151).

12000200220121 is an equidigital number, since it uses as much as digits as its factorization.

12000200220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132218150.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12000200220121 its reverse (12102200200021), we get a palindrome (24102400420142).

The spelling of 12000200220121 in words is "twelve trillion, two hundred million, two hundred twenty thousand, one hundred twenty-one".