3221303421 has 16 divisors (see below), whose sum is σ = 4909507200. Its totient is φ = 1840424448.

The previous prime is 3221303411. The next prime is 3221303467. The reversal of 3221303421 is 1243031223.

It is not a de Polignac number, because 3221303421 - 2⁵ = 3221303389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221303401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166585 + ... + 184913.

It is an arithmetic number, because the mean of its divisors is an integer number (306844200).

Almost surely, 2^3221303421 is an apocalyptic number.

It is an amenable number.

3221303421 is a deficient number, since it is larger than the sum of its proper divisors (1688203779).

3221303421 is a wasteful number, since it uses less digits than its factorization.

3221303421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26708.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 3221303421 is about 56756.5275629156. The cubic root of 3221303421 is about 1476.8754725531.

Adding to 3221303421 its reverse (1243031223), we get a palindrome (4464334644).

The spelling of 3221303421 in words is "three billion, two hundred twenty-one million, three hundred three thousand, four hundred twenty-one".