201120021100221 has 4 divisors (see below), whose sum is σ = 268160028133632. Its totient is φ = 134080014066812.

The previous prime is 201120021100199. The next prime is 201120021100249. The reversal of 201120021100221 is 122001120021102.

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 201120021100221 - 2⁶ = 201120021100157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201120021100221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201120021100321) 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, 33520003516701 + ... + 33520003516706.

It is an arithmetic number, because the mean of its divisors is an integer number (67040007033408).

Almost surely, 2^{201120021100221} is an apocalyptic number.

It is an amenable number.

201120021100221 is a deficient number, since it is larger than the sum of its proper divisors (67040007033411).

201120021100221 is an equidigital number, since it uses as much as digits as its factorization.

201120021100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67040007033410.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201120021100221 its reverse (122001120021102), we get a palindrome (323121141121323).

The spelling of 201120021100221 in words is "two hundred one trillion, one hundred twenty billion, twenty-one million, one hundred thousand, two hundred twenty-one".