12122120112 has 40 divisors (see below), whose sum is σ = 31329155520. Its totient is φ = 4038941760.

The previous prime is 12122120111. The next prime is 12122120159. The reversal of 12122120112 is 21102122121.

12122120112 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 = 12122120091 and 12122120100.

It is not an unprimeable number, because it can be changed into a prime (12122120111) 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, 58287 + ... + 166257.

It is an arithmetic number, because the mean of its divisors is an integer number (783228888).

Almost surely, 2^12122120112 is an apocalyptic number.

12122120112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12122120112 is an abundant number, since it is smaller than the sum of its proper divisors (19207035408).

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

12122120112 is a wasteful number, since it uses less digits than its factorization.

12122120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110321 (or 110315 counting only the distinct ones).

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

Adding to 12122120112 its reverse (21102122121), we get a palindrome (33224242233).

The spelling of 12122120112 in words is "twelve billion, one hundred twenty-two million, one hundred twenty thousand, one hundred twelve".