12111100122 has 16 divisors (see below), whose sum is σ = 26424218592. Its totient is φ = 3670030320.

The previous prime is 12111100117. The next prime is 12111100171. The reversal of 12111100122 is 22100111121.

12111100122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12111100098 and 12111100107.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 91750693 + ... + 91750824.

It is an arithmetic number, because the mean of its divisors is an integer number (1651513662).

Almost surely, 2^12111100122 is an apocalyptic number.

12111100122 is an abundant number, since it is smaller than the sum of its proper divisors (14313118470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12111100122 is a wasteful number, since it uses less digits than its factorization.

12111100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183501533.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12111100122 its reverse (22100111121), we get a palindrome (34211211243).

The spelling of 12111100122 in words is "twelve billion, one hundred eleven million, one hundred thousand, one hundred twenty-two".