12120222211 has 4 divisors (see below), whose sum is σ = 12120460000. Its totient is φ = 12119984424.

The previous prime is 12120222203. The next prime is 12120222259. The reversal of 12120222211 is 11222202121.

It is a happy number.

12120222211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12120222211 - 2³ = 12120222203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120229211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7896 + ... + 155893.

It is an arithmetic number, because the mean of its divisors is an integer number (3030115000).

Almost surely, 2^12120222211 is an apocalyptic number.

12120222211 is a deficient number, since it is larger than the sum of its proper divisors (237789).

12120222211 is an equidigital number, since it uses as much as digits as its factorization.

12120222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237788.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12120222211 its reverse (11222202121), we get a palindrome (23342424332).

The spelling of 12120222211 in words is "twelve billion, one hundred twenty million, two hundred twenty-two thousand, two hundred eleven".