2210221321 has 8 divisors (see below), whose sum is σ = 2755600704. Its totient is φ = 1722250320.

The previous prime is 2210221313. The next prime is 2210221327. The reversal of 2210221321 is 1231220122.

It is a happy number.

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

It is not a de Polignac number, because 2210221321 - 2³ = 2210221313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2210221295 and 2210221304.

It is not an unprimeable number, because it can be changed into a prime (2210221327) 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, 14352010 + ... + 14352163.

It is an arithmetic number, because the mean of its divisors is an integer number (344450088).

Almost surely, 2^2210221321 is an apocalyptic number.

It is an amenable number.

2210221321 is a deficient number, since it is larger than the sum of its proper divisors (545379383).

2210221321 is a wasteful number, since it uses less digits than its factorization.

2210221321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28704191.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2210221321 is about 47012.9909812171. The cubic root of 2210221321 is about 1302.6025419716.

Adding to 2210221321 its reverse (1231220122), we get a palindrome (3441441443).

The spelling of 2210221321 in words is "two billion, two hundred ten million, two hundred twenty-one thousand, three hundred twenty-one".