12111201222112 has 96 divisors (see below), whose sum is σ = 24199702158240. Its totient is φ = 5965769441280.

The previous prime is 12111201222089. The next prime is 12111201222181. The reversal of 12111201222112 is 21122210211121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12111201222112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1460760687 + ... + 1460768977.

It is an arithmetic number, because the mean of its divisors is an integer number (252080230815).

Almost surely, 2^{12111201222112} is an apocalyptic number.

It is an amenable number.

12111201222112 is a deficient number, since it is larger than the sum of its proper divisors (12088500936128).

12111201222112 is a wasteful number, since it uses less digits than its factorization.

12111201222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10196 (or 10188 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12111201222112 its reverse (21122210211121), we get a palindrome (33233411433233).

The spelling of 12111201222112 in words is "twelve trillion, one hundred eleven billion, two hundred one million, two hundred twenty-two thousand, one hundred twelve".