12122102221112 has 64 divisors (see below), whose sum is σ = 25918795627200. Its totient is φ = 5265378109440.

The previous prime is 12122102221093. The next prime is 12122102221123. The reversal of 12122102221112 is 21112220122121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28998062 + ... + 29413122.

It is an arithmetic number, because the mean of its divisors is an integer number (404981181675).

Almost surely, 2^{12122102221112} is an apocalyptic number.

It is an amenable number.

12122102221112 is an abundant number, since it is smaller than the sum of its proper divisors (13796693406088).

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

12122102221112 is a wasteful number, since it uses less digits than its factorization.

12122102221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431616 (or 431612 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12122102221112 its reverse (21112220122121), we get a palindrome (33234322343233).

The spelling of 12122102221112 in words is "twelve trillion, one hundred twenty-two billion, one hundred two million, two hundred twenty-one thousand, one hundred twelve".