3213233221 has 8 divisors (see below), whose sum is σ = 3518987904. Its totient is φ = 2909752320.

The previous prime is 3213233213. The next prime is 3213233237. The reversal of 3213233221 is 1223323123.

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 3213233221 - 2³ = 3213233213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3213233192 and 3213233201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213233251) 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, 565485 + ... + 571138.

It is an arithmetic number, because the mean of its divisors is an integer number (439873488).

Almost surely, 2^3213233221 is an apocalyptic number.

It is an amenable number.

3213233221 is a deficient number, since it is larger than the sum of its proper divisors (305754683).

3213233221 is a wasteful number, since it uses less digits than its factorization.

3213233221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136891.

The product of its digits is 1296, while the sum is 22.

The square root of 3213233221 is about 56685.3880731181. The cubic root of 3213233221 is about 1475.6411225728.

Adding to 3213233221 its reverse (1223323123), we get a palindrome (4436556344).

The spelling of 3213233221 in words is "three billion, two hundred thirteen million, two hundred thirty-three thousand, two hundred twenty-one".