2303200020221 has 4 divisors (see below), whose sum is σ = 2305900138332. Its totient is φ = 2300499902112.

The previous prime is 2303200020157. The next prime is 2303200020229. The reversal of 2303200020221 is 1220200023032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 226589328196 + 2076610692025 = 476014^2 + 1441045^2 .

It is a cyclic number.

It is not a de Polignac number, because 2303200020221 - 2⁶ = 2303200020157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2303200020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2303200020229) 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, 1350057776 + ... + 1350059481.

It is an arithmetic number, because the mean of its divisors is an integer number (576475034583).

Almost surely, 2^{2303200020221} is an apocalyptic number.

It is an amenable number.

2303200020221 is a deficient number, since it is larger than the sum of its proper divisors (2700118111).

2303200020221 is an equidigital number, since it uses as much as digits as its factorization.

2303200020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2700118110.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 2303200020221 its reverse (1220200023032), we get a palindrome (3523400043253).

The spelling of 2303200020221 in words is "two trillion, three hundred three billion, two hundred million, twenty thousand, two hundred twenty-one".