572229221 has 2 divisors, whose sum is σ = 572229222. Its totient is φ = 572229220.

The previous prime is 572229211. The next prime is 572229233. The reversal of 572229221 is 122922275.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 418816225 + 153412996 = 20465^2 + 12386^2 .

It is a cyclic number.

It is not a de Polignac number, because 572229221 - 2⁶ = 572229157 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (572229211) 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 as a sum of consecutive naturals, namely, 286114610 + 286114611.

It is an arithmetic number, because the mean of its divisors is an integer number (286114611).

Almost surely, 2^572229221 is an apocalyptic number.

It is an amenable number.

572229221 is a deficient number, since it is larger than the sum of its proper divisors (1).

572229221 is an equidigital number, since it uses as much as digits as its factorization.

572229221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 32.

The square root of 572229221 is about 23921.3131119510. The cubic root of 572229221 is about 830.2139193130.

It can be divided in two parts, 5722 and 29221, that added together give a palindrome (34943).

The spelling of 572229221 in words is "five hundred seventy-two million, two hundred twenty-nine thousand, two hundred twenty-one".