3221221321403 has 16 divisors (see below), whose sum is σ = 3248254980096. Its totient is φ = 3194306655840.

The previous prime is 3221221321337. The next prime is 3221221321411. The reversal of 3221221321403 is 3041231221223.

It is a cyclic number.

It is not a de Polignac number, because 3221221321403 - 2⁸ = 3221221321147 is a prime.

It is a super-2 number, since 2×3221221321403² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3221221321103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 389832650 + ... + 389840912.

It is an arithmetic number, because the mean of its divisors is an integer number (203015936256).

Almost surely, 2^{3221221321403} is an apocalyptic number.

3221221321403 is a deficient number, since it is larger than the sum of its proper divisors (27033658693).

3221221321403 is a wasteful number, since it uses less digits than its factorization.

3221221321403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15074.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 3221221321403 its reverse (3041231221223), we get a palindrome (6262452542626).

The spelling of 3221221321403 in words is "three trillion, two hundred twenty-one billion, two hundred twenty-one million, three hundred twenty-one thousand, four hundred three".