2021343302221 has 8 divisors (see below), whose sum is σ = 2050449099584. Its totient is φ = 1992275779680.

The previous prime is 2021343302189. The next prime is 2021343302291. The reversal of 2021343302221 is 1222033431202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2021343302221 - 2⁵ = 2021343302189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021343302291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9462315 + ... + 9673576.

It is an arithmetic number, because the mean of its divisors is an integer number (256306137448).

Almost surely, 2^{2021343302221} is an apocalyptic number.

It is an amenable number.

2021343302221 is a deficient number, since it is larger than the sum of its proper divisors (29105797363).

2021343302221 is a wasteful number, since it uses less digits than its factorization.

2021343302221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19137411.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 2021343302221 its reverse (1222033431202), we get a palindrome (3243376733423).

The spelling of 2021343302221 in words is "two trillion, twenty-one billion, three hundred forty-three million, three hundred two thousand, two hundred twenty-one".