12120222112 has 12 divisors (see below), whose sum is σ = 23861687346. Its totient is φ = 6060111040.

The previous prime is 12120222109. The next prime is 12120222137. The reversal of 12120222112 is 21122202121.

It is a happy number.

12120222112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9722748816 + 2397473296 = 98604^2 + 48964^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

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 as a sum of consecutive naturals, namely, 189378439 + ... + 189378502.

Almost surely, 2^12120222112 is an apocalyptic number.

It is an amenable number.

12120222112 is a deficient number, since it is larger than the sum of its proper divisors (11741465234).

12120222112 is an equidigital number, since it uses as much as digits as its factorization.

12120222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378756951 (or 378756943 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12120222112 its reverse (21122202121), we get a palindrome (33242424233).

The spelling of 12120222112 in words is "twelve billion, one hundred twenty million, two hundred twenty-two thousand, one hundred twelve".