12201020211101 has 4 divisors (see below), whose sum is σ = 12843179169600. Its totient is φ = 11558861252604.

The previous prime is 12201020211067. The next prime is 12201020211161. The reversal of 12201020211101 is 10111202010221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12201020211101 - 2³⁸ = 11926142304157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201020211161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321079479221 + ... + 321079479258.

It is an arithmetic number, because the mean of its divisors is an integer number (3210794792400).

Almost surely, 2^{12201020211101} is an apocalyptic number.

It is an amenable number.

12201020211101 is a deficient number, since it is larger than the sum of its proper divisors (642158958499).

12201020211101 is an equidigital number, since it uses as much as digits as its factorization.

12201020211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642158958498.

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

Adding to 12201020211101 its reverse (10111202010221), we get a palindrome (22312222221322).

The spelling of 12201020211101 in words is "twelve trillion, two hundred one billion, twenty million, two hundred eleven thousand, one hundred one".