8821942216 has 16 divisors (see below), whose sum is σ = 17111526300. Its totient is φ = 4258868544.

The previous prime is 8821942201. The next prime is 8821942219. The reversal of 8821942216 is 6122491288.

It can be written as a sum of positive squares in 2 ways, for example, as 7788062500 + 1033879716 = 88250^2 + 32154^2 .

It is not an unprimeable number, because it can be changed into a prime (8821942219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19012575 + ... + 19013038.

Almost surely, 2^8821942216 is an apocalyptic number.

It is an amenable number.

8821942216 is a deficient number, since it is larger than the sum of its proper divisors (8289584084).

8821942216 is a wasteful number, since it uses less digits than its factorization.

8821942216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38025648 (or 38025644 counting only the distinct ones).

The product of its digits is 110592, while the sum is 43.

The square root of 8821942216 is about 93925.1947881930. The cubic root of 8821942216 is about 2066.2747546590.

The spelling of 8821942216 in words is "eight billion, eight hundred twenty-one million, nine hundred forty-two thousand, two hundred sixteen".