2221001332321 has 8 divisors (see below), whose sum is σ = 2227317873984. Its totient is φ = 2214692335440.

The previous prime is 2221001332223. The next prime is 2221001332379. The reversal of 2221001332321 is 1232331001222.

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 2221001332321 - 2³⁵ = 2186641593953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2221001332292 and 2221001332301.

It is not an unprimeable number, because it can be changed into a prime (2221001333321) 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, 1296346 + ... + 2474371.

It is an arithmetic number, because the mean of its divisors is an integer number (278414734248).

Almost surely, 2^{2221001332321} is an apocalyptic number.

It is an amenable number.

2221001332321 is a deficient number, since it is larger than the sum of its proper divisors (6316541663).

2221001332321 is a wasteful number, since it uses less digits than its factorization.

2221001332321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3772391.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2221001332321 its reverse (1232331001222), we get a palindrome (3453332333543).

The spelling of 2221001332321 in words is "two trillion, two hundred twenty-one billion, one million, three hundred thirty-two thousand, three hundred twenty-one".