8821272122 has 16 divisors (see below), whose sum is σ = 14262643080. Its totient is φ = 4067671872.

The previous prime is 8821272091. The next prime is 8821272151. The reversal of 8821272122 is 2212721288.

It can be written as a sum of positive squares in 4 ways, for example, as 5393286721 + 3427985401 = 73439^2 + 58549^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124133 + ... + 181800.

Almost surely, 2^8821272122 is an apocalyptic number.

8821272122 is a deficient number, since it is larger than the sum of its proper divisors (5441370958).

8821272122 is a wasteful number, since it uses less digits than its factorization.

8821272122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307057.

The product of its digits is 14336, while the sum is 35.

The square root of 8821272122 is about 93921.6275519116. The cubic root of 8821272122 is about 2066.2224368760. Note that the first 3 decimals are identical.

The spelling of 8821272122 in words is "eight billion, eight hundred twenty-one million, two hundred seventy-two thousand, one hundred twenty-two".