2221301321 has 8 divisors (see below), whose sum is σ = 2278015488. Its totient is φ = 2164708000.

The previous prime is 2221301309. The next prime is 2221301359. The reversal of 2221301321 is 1231031222.

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 2221301321 - 2¹⁰ = 2221300297 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 2221301321.

It is not an unprimeable number, because it can be changed into a prime (2221304321) 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, 7616 + ... + 67086.

It is an arithmetic number, because the mean of its divisors is an integer number (284751936).

Almost surely, 2^2221301321 is an apocalyptic number.

It is an amenable number.

2221301321 is a deficient number, since it is larger than the sum of its proper divisors (56714167).

2221301321 is an equidigital number, since it uses as much as digits as its factorization.

2221301321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60423.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2221301321 is about 47130.6834344676. The cubic root of 2221301321 is about 1304.7755951638.

Adding to 2221301321 its reverse (1231031222), we get a palindrome (3452332543).

The spelling of 2221301321 in words is "two billion, two hundred twenty-one million, three hundred one thousand, three hundred twenty-one".