3163433221 has 32 divisors (see below), whose sum is σ = 3535773696. Its totient is φ = 2812320000.

The previous prime is 3163433213. The next prime is 3163433233. The reversal of 3163433221 is 1223343613.

It is a cyclic number.

It is not a de Polignac number, because 3163433221 - 2³ = 3163433213 is a prime.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 3163433221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3163433201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10171656 + ... + 10171966.

It is an arithmetic number, because the mean of its divisors is an integer number (110492928).

Almost surely, 2^3163433221 is an apocalyptic number.

It is an amenable number.

3163433221 is a deficient number, since it is larger than the sum of its proper divisors (372340475).

3163433221 is a wasteful number, since it uses less digits than its factorization.

3163433221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613.

The product of its digits is 7776, while the sum is 28.

The square root of 3163433221 is about 56244.4061307433. The cubic root of 3163433221 is about 1467.9780337907.

Adding to 3163433221 its reverse (1223343613), we get a palindrome (4386776834).

The spelling of 3163433221 in words is "three billion, one hundred sixty-three million, four hundred thirty-three thousand, two hundred twenty-one".