3222121321 has 8 divisors (see below), whose sum is σ = 3323826944. Its totient is φ = 3121992720.

The previous prime is 3222121319. The next prime is 3222121349. The reversal of 3222121321 is 1231212223.

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 3222121321 - 2¹ = 3222121319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3222121381) 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, 390105 + ... + 398278.

It is an arithmetic number, because the mean of its divisors is an integer number (415478368).

Almost surely, 2^3222121321 is an apocalyptic number.

It is an amenable number.

3222121321 is a deficient number, since it is larger than the sum of its proper divisors (101705623).

3222121321 is an equidigital number, since it uses as much as digits as its factorization.

3222121321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788511.

The product of its digits is 288, while the sum is 19.

The square root of 3222121321 is about 56763.7324442289. The cubic root of 3222121321 is about 1477.0004565604. Note that the first 3 decimals are identical.

Adding to 3222121321 its reverse (1231212223), we get a palindrome (4453333544).

The spelling of 3222121321 in words is "three billion, two hundred twenty-two million, one hundred twenty-one thousand, three hundred twenty-one".