2205304021 has 8 divisors (see below), whose sum is σ = 2234494080. Its totient is φ = 2176245888.

The previous prime is 2205304001. The next prime is 2205304037. The reversal of 2205304021 is 1204035022.

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 2205304021 - 2²⁷ = 2071086293 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 2205304021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205304001) 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, 900 + ... + 66418.

It is an arithmetic number, because the mean of its divisors is an integer number (279311760).

Almost surely, 2^2205304021 is an apocalyptic number.

It is an amenable number.

2205304021 is a deficient number, since it is larger than the sum of its proper divisors (29190059).

2205304021 is an equidigital number, since it uses as much as digits as its factorization.

2205304021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65963.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2205304021 is about 46960.6646141215. The cubic root of 2205304021 is about 1301.6358147244.

Adding to 2205304021 its reverse (1204035022), we get a palindrome (3409339043).

The spelling of 2205304021 in words is "two billion, two hundred five million, three hundred four thousand, twenty-one".