3221165052 has 72 divisors (see below), whose sum is σ = 9357132512. Its totient is φ = 915235200.

The previous prime is 3221165033. The next prime is 3221165089. The reversal of 3221165052 is 2505611223.

It is a happy number.

3221165052 is a `hidden beast` number, since 3 + 2 + 2 + 1 + 1 + 650 + 5 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10302 + ... + 80922.

Almost surely, 2^3221165052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3221165052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4678566256).

3221165052 is an abundant number, since it is smaller than the sum of its proper divisors (6135967460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3221165052 is a wasteful number, since it uses less digits than its factorization.

3221165052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70819 (or 70814 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 3221165052 is about 56755.3085799029. The cubic root of 3221165052 is about 1476.8543261742.

Adding to 3221165052 its reverse (2505611223), we get a palindrome (5726776275).

The spelling of 3221165052 in words is "three billion, two hundred twenty-one million, one hundred sixty-five thousand, fifty-two".