12201020212001 has 4 divisors (see below), whose sum is σ = 12201028436400. Its totient is φ = 12201011987604.

The previous prime is 12201020211997. The next prime is 12201020212027. The reversal of 12201020212001 is 10021202010221.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12201020212001 - 2² = 12201020211997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12201020212091) 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, 1198991 + ... + 5083268.

It is an arithmetic number, because the mean of its divisors is an integer number (3050257109100).

Almost surely, 2^{12201020212001} is an apocalyptic number.

It is an amenable number.

12201020212001 is a deficient number, since it is larger than the sum of its proper divisors (8224399).

12201020212001 is an equidigital number, since it uses as much as digits as its factorization.

12201020212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8224398.

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

Adding to 12201020212001 its reverse (10021202010221), we get a palindrome (22222222222222).

The spelling of 12201020212001 in words is "twelve trillion, two hundred one billion, twenty million, two hundred twelve thousand, one".