12120122211 has 16 divisors (see below), whose sum is σ = 17097062400. Its totient is φ = 7615950048.

The previous prime is 12120122207. The next prime is 12120122213. The reversal of 12120122211 is 11222102121.

12120122211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12120122211 - 2² = 12120122207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12120122213) 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 15 ways as a sum of consecutive naturals, for example, 528451 + ... + 550908.

It is an arithmetic number, because the mean of its divisors is an integer number (1068566400).

Almost surely, 2^12120122211 is an apocalyptic number.

12120122211 is a deficient number, since it is larger than the sum of its proper divisors (4976940189).

12120122211 is a wasteful number, since it uses less digits than its factorization.

12120122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079578.

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

Adding to 12120122211 its reverse (11222102121), we get a palindrome (23342224332).

The spelling of 12120122211 in words is "twelve billion, one hundred twenty million, one hundred twenty-two thousand, two hundred eleven".