12110221000221 has 4 divisors (see below), whose sum is σ = 16146961333632. Its totient is φ = 8073480666812.

The previous prime is 12110221000219. The next prime is 12110221000243. The reversal of 12110221000221 is 12200012201121.

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 not a de Polignac number, because 12110221000221 - 2¹ = 12110221000219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12110221000221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110221100221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2018370166701 + ... + 2018370166706.

It is an arithmetic number, because the mean of its divisors is an integer number (4036740333408).

Almost surely, 2^{12110221000221} is an apocalyptic number.

It is an amenable number.

12110221000221 is a deficient number, since it is larger than the sum of its proper divisors (4036740333411).

12110221000221 is an equidigital number, since it uses as much as digits as its factorization.

12110221000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4036740333410.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12110221000221 its reverse (12200012201121), we get a palindrome (24310233201342).

The spelling of 12110221000221 in words is "twelve trillion, one hundred ten billion, two hundred twenty-one million, two hundred twenty-one", and thus it is an aban number.