12122110112 has 48 divisors (see below), whose sum is σ = 27285672960. Its totient is φ = 5193109248.

The previous prime is 12122110069. The next prime is 12122110123. The reversal of 12122110112 is 21101122121.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 635498 + ... + 654294.

It is an arithmetic number, because the mean of its divisors is an integer number (568451520).

Almost surely, 2^12122110112 is an apocalyptic number.

It is an amenable number.

12122110112 is an abundant number, since it is smaller than the sum of its proper divisors (15163562848).

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

12122110112 is a wasteful number, since it uses less digits than its factorization.

12122110112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21693 (or 21685 counting only the distinct ones).

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

Adding to 12122110112 its reverse (21101122121), we get a palindrome (33223232233).

The spelling of 12122110112 in words is "twelve billion, one hundred twenty-two million, one hundred ten thousand, one hundred twelve".