3221232215 has 8 divisors (see below), whose sum is σ = 3873830208. Its totient is φ = 2571418080.

The previous prime is 3221232187. The next prime is 3221232257. The reversal of 3221232215 is 5122321223.

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

It is not a de Polignac number, because 3221232215 - 2⁶ = 3221232151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 693416 + ... + 698045.

It is an arithmetic number, because the mean of its divisors is an integer number (484228776).

Almost surely, 2^3221232215 is an apocalyptic number.

3221232215 is a deficient number, since it is larger than the sum of its proper divisors (652597993).

3221232215 is a wasteful number, since it uses less digits than its factorization.

3221232215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391929.

The product of its digits is 1440, while the sum is 23.

The square root of 3221232215 is about 56755.9002659635. The cubic root of 3221232215 is about 1476.8645905016.

Adding to 3221232215 its reverse (5122321223), we get a palindrome (8343553438).

The spelling of 3221232215 in words is "three billion, two hundred twenty-one million, two hundred thirty-two thousand, two hundred fifteen".