12210222120121 has 8 divisors (see below), whose sum is σ = 12240818165664. Its totient is φ = 12179626804800.

The previous prime is 12210222120097. The next prime is 12210222120157. The reversal of 12210222120121 is 12102122201221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12210222120121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12210222120521) 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, 51772950 + ... + 52008256.

It is an arithmetic number, because the mean of its divisors is an integer number (1530102270708).

Almost surely, 2^{12210222120121} is an apocalyptic number.

It is an amenable number.

12210222120121 is a deficient number, since it is larger than the sum of its proper divisors (30596045543).

12210222120121 is a wasteful number, since it uses less digits than its factorization.

12210222120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365111.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12210222120121 its reverse (12102122201221), we get a palindrome (24312344321342).

The spelling of 12210222120121 in words is "twelve trillion, two hundred ten billion, two hundred twenty-two million, one hundred twenty thousand, one hundred twenty-one".