572722221 has 8 divisors (see below), whose sum is σ = 764737504. Its totient is φ = 381260880.

The previous prime is 572722207. The next prime is 572722237. The reversal of 572722221 is 122227275.

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

It is not a de Polignac number, because 572722221 - 2²³ = 564333613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (572722201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136066 + ... + 140211.

It is an arithmetic number, because the mean of its divisors is an integer number (95592188).

Almost surely, 2^572722221 is an apocalyptic number.

It is an amenable number.

572722221 is a deficient number, since it is larger than the sum of its proper divisors (192015283).

572722221 is a wasteful number, since it uses less digits than its factorization.

572722221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276971.

The product of its digits is 7840, while the sum is 30.

The square root of 572722221 is about 23931.6155117033. The cubic root of 572722221 is about 830.4522725006.

Adding to 572722221 its reverse (122227275), we get a palindrome (694949496).

The spelling of 572722221 in words is "five hundred seventy-two million, seven hundred twenty-two thousand, two hundred twenty-one".