572232221 has 8 divisors (see below), whose sum is σ = 624681504. Its totient is φ = 519854320.

The previous prime is 572232179. The next prime is 572232251. The reversal of 572232221 is 122232275.

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-572232221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (572232251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326 + ... + 33831.

It is an arithmetic number, because the mean of its divisors is an integer number (78085188).

Almost surely, 2^572232221 is an apocalyptic number.

It is an amenable number.

572232221 is a deficient number, since it is larger than the sum of its proper divisors (52449283).

572232221 is a wasteful number, since it uses less digits than its factorization.

572232221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35691.

The product of its digits is 3360, while the sum is 26.

The square root of 572232221 is about 23921.3758174567. The cubic root of 572232221 is about 830.2153701520.

Adding to 572232221 its reverse (122232275), we get a palindrome (694464496).

The spelling of 572232221 in words is "five hundred seventy-two million, two hundred thirty-two thousand, two hundred twenty-one".