6822221539 has 6 divisors (see below), whose sum is σ = 7936053684. Its totient is φ = 5847618420.

The previous prime is 6822221519. The next prime is 6822221543. The reversal of 6822221539 is 9351222286.

It is not a de Polignac number, because 6822221539 - 2¹¹ = 6822219491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6822221509) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69614457 + ... + 69614554.

It is an arithmetic number, because the mean of its divisors is an integer number (1322675614).

Almost surely, 2^6822221539 is an apocalyptic number.

6822221539 is a deficient number, since it is larger than the sum of its proper divisors (1113832145).

6822221539 is a wasteful number, since it uses less digits than its factorization.

6822221539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139229025 (or 139229018 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 6822221539 is about 82596.7404865349. The cubic root of 6822221539 is about 1896.5979322442.

The spelling of 6822221539 in words is "six billion, eight hundred twenty-two million, two hundred twenty-one thousand, five hundred thirty-nine".