12120211112 has 96 divisors (see below), whose sum is σ = 24893625600. Its totient is φ = 5525625600.

The previous prime is 12120211079. The next prime is 12120211121. The reversal of 12120211112 is 21111202121.

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 23 ways as a sum of consecutive naturals, for example, 29633564 + ... + 29633972.

It is an arithmetic number, because the mean of its divisors is an integer number (259308600).

Almost surely, 2^12120211112 is an apocalyptic number.

It is an amenable number.

12120211112 is an abundant number, since it is smaller than the sum of its proper divisors (12773414488).

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

12120211112 is a wasteful number, since it uses less digits than its factorization.

12120211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815 (or 792 counting only the distinct ones).

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

Adding to 12120211112 its reverse (21111202121), we get a palindrome (33231413233).

The spelling of 12120211112 in words is "twelve billion, one hundred twenty million, two hundred eleven thousand, one hundred twelve".