6822221497 has 16 divisors (see below), whose sum is σ = 8511610240. Its totient is φ = 5323853952.

The previous prime is 6822221477. The next prime is 6822221509. The reversal of 6822221497 is 7941222286.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6822221497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6822221477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 506847 + ... + 520132.

It is an arithmetic number, because the mean of its divisors is an integer number (531975640).

Almost surely, 2^6822221497 is an apocalyptic number.

It is an amenable number.

6822221497 is a deficient number, since it is larger than the sum of its proper divisors (1689388743).

6822221497 is a wasteful number, since it uses less digits than its factorization.

6822221497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027072.

The product of its digits is 193536, while the sum is 43.

The square root of 6822221497 is about 82596.7402322876. The cubic root of 6822221497 is about 1896.5979283522.

The spelling of 6822221497 in words is "six billion, eight hundred twenty-two million, two hundred twenty-one thousand, four hundred ninety-seven".