12201221200100 has 72 divisors (see below), whose sum is σ = 26535111310848. Its totient is φ = 4869715334400.

The previous prime is 12201221200081. The next prime is 12201221200151. The reversal of 12201221200100 is 100212210221.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 400931885 + ... + 400962315.

Almost surely, 2^{12201221200100} is an apocalyptic number.

12201221200100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201221200100 is an abundant number, since it is smaller than the sum of its proper divisors (14333890110748).

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

12201221200100 is a wasteful number, since it uses less digits than its factorization.

12201221200100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39165 (or 39158 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12201221200100 its reverse (100212210221), we get a palindrome (12301433410321).

The spelling of 12201221200100 in words is "twelve trillion, two hundred one billion, two hundred twenty-one million, two hundred thousand, one hundred".