12111120122 has 16 divisors (see below), whose sum is σ = 18408099840. Its totient is φ = 5975182512.

The previous prime is 12111120121. The next prime is 12111120139. The reversal of 12111120122 is 22102111121.

12111120122 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 = 12111120097 and 12111120106.

It is not an unprimeable number, because it can be changed into a prime (12111120121) 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 7 ways as a sum of consecutive naturals, for example, 239708 + ... + 285800.

It is an arithmetic number, because the mean of its divisors is an integer number (1150506240).

Almost surely, 2^12111120122 is an apocalyptic number.

12111120122 is a deficient number, since it is larger than the sum of its proper divisors (6296979718).

12111120122 is a wasteful number, since it uses less digits than its factorization.

12111120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47837.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12111120122 its reverse (22102111121), we get a palindrome (34213231243).

Subtracting 12111120122 from its reverse (22102111121), we obtain a palindrome (9990990999).

The spelling of 12111120122 in words is "twelve billion, one hundred eleven million, one hundred twenty thousand, one hundred twenty-two".