3221312223 has 8 divisors (see below), whose sum is σ = 4297499008. Its totient is φ = 2146333464.

The previous prime is 3221312189. The next prime is 3221312243. The reversal of 3221312223 is 3222131223.

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 3221312223 - 2¹⁰ = 3221311199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3221312223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221312243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295765 + ... + 306462.

It is an arithmetic number, because the mean of its divisors is an integer number (537187376).

Almost surely, 2^3221312223 is an apocalyptic number.

3221312223 is a deficient number, since it is larger than the sum of its proper divisors (1076186785).

3221312223 is a wasteful number, since it uses less digits than its factorization.

3221312223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604013.

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

The square root of 3221312223 is about 56756.6051046043. The cubic root of 3221312223 is about 1476.8768177070.

Adding to 3221312223 its reverse (3222131223), we get a palindrome (6443443446).

The spelling of 3221312223 in words is "three billion, two hundred twenty-one million, three hundred twelve thousand, two hundred twenty-three".