8572221113 has 8 divisors (see below), whose sum is σ = 8743293576. Its totient is φ = 8401494400.

The previous prime is 8572221107. The next prime is 8572221137. The reversal of 8572221113 is 3111222758.

8572221113 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3510325504 + 5061895609 = 59248^2 + 71147^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8572221113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8572221113.

It is not an unprimeable number, because it can be changed into a prime (8572221143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36068 + ... + 135813.

It is an arithmetic number, because the mean of its divisors is an integer number (1092911697).

Almost surely, 2^8572221113 is an apocalyptic number.

It is an amenable number.

8572221113 is a deficient number, since it is larger than the sum of its proper divisors (171072463).

8572221113 is a wasteful number, since it uses less digits than its factorization.

8572221113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172875.

The product of its digits is 6720, while the sum is 32.

The square root of 8572221113 is about 92586.2900920001. The cubic root of 8572221113 is about 2046.5912904149.

The spelling of 8572221113 in words is "eight billion, five hundred seventy-two million, two hundred twenty-one thousand, one hundred thirteen".