12201221202112 has 28 divisors (see below), whose sum is σ = 24573168455800. Its totient is φ = 6009556709376.

The previous prime is 12201221202089. The next prime is 12201221202193. The reversal of 12201221202112 is 21120212210221.

It is a self number, because there is not a number n which added to its sum of digits gives 12201221202112.

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 in 3 ways as a sum of consecutive naturals, for example, 1422712737 + ... + 1422721312.

Almost surely, 2^{12201221202112} is an apocalyptic number.

It is an amenable number.

12201221202112 is an abundant number, since it is smaller than the sum of its proper divisors (12371947253688).

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

12201221202112 is an equidigital number, since it uses as much as digits as its factorization.

12201221202112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2845434128 (or 2845434118 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12201221202112 its reverse (21120212210221), we get a palindrome (33321433412333).

The spelling of 12201221202112 in words is "twelve trillion, two hundred one billion, two hundred twenty-one million, two hundred two thousand, one hundred twelve".