8193325221 has 48 divisors (see below), whose sum is σ = 12368790720. Its totient is φ = 5222004480.

The previous prime is 8193325211. The next prime is 8193325291. The reversal of 8193325221 is 1225233918.

It is not a de Polignac number, because 8193325221 - 2³⁰ = 7119583397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8193325211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6415435 + ... + 6416711.

It is an arithmetic number, because the mean of its divisors is an integer number (257683140).

Almost surely, 2^8193325221 is an apocalyptic number.

It is an amenable number.

8193325221 is a deficient number, since it is larger than the sum of its proper divisors (4175465499).

8193325221 is a wasteful number, since it uses less digits than its factorization.

8193325221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666 (or 1663 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 8193325221 is about 90516.9885767307. The cubic root of 8193325221 is about 2015.9823766943.

The spelling of 8193325221 in words is "eight billion, one hundred ninety-three million, three hundred twenty-five thousand, two hundred twenty-one".