12120222100211 has 4 divisors (see below), whose sum is σ = 12121123178424. Its totient is φ = 12119321022000.

The previous prime is 12120222100193. The next prime is 12120222100243. The reversal of 12120222100211 is 11200122202121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12120222100211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12120222100211.

It is not an unprimeable number, because it can be changed into a prime (12320222100211) 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, 450518930 + ... + 450545831.

It is an arithmetic number, because the mean of its divisors is an integer number (3030280794606).

Almost surely, 2^{12120222100211} is an apocalyptic number.

12120222100211 is a deficient number, since it is larger than the sum of its proper divisors (901078213).

12120222100211 is an equidigital number, since it uses as much as digits as its factorization.

12120222100211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901078212.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12120222100211 its reverse (11200122202121), we get a palindrome (23320344302332).

The spelling of 12120222100211 in words is "twelve trillion, one hundred twenty billion, two hundred twenty-two million, one hundred thousand, two hundred eleven".