12201020211100 has 36 divisors (see below), whose sum is σ = 30258530125264. Its totient is φ = 4183206929280.

The previous prime is 12201020211067. The next prime is 12201020211161. The reversal of 12201020211100 is 111202010221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8715013737 + ... + 8715015136.

Almost surely, 2^{12201020211100} is an apocalyptic number.

12201020211100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201020211100 is an abundant number, since it is smaller than the sum of its proper divisors (18057509914164).

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

12201020211100 is a wasteful number, since it uses less digits than its factorization.

12201020211100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17430028894 (or 17430028887 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12201020211100 its reverse (111202010221), we get a palindrome (12312222221321).

The spelling of 12201020211100 in words is "twelve trillion, two hundred one billion, twenty million, two hundred eleven thousand, one hundred".