571222 has 4 divisors (see below), whose sum is σ = 856836. Its totient is φ = 285610.

The previous prime is 571211. The next prime is 571223. The reversal of 571222 is 222175.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 571222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (571223) by changing a digit.

571222 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 142804 + ... + 142807.

It is an arithmetic number, because the mean of its divisors is an integer number (214209).

2⁵⁷¹²²² is an apocalyptic number.

571222 is a deficient number, since it is larger than the sum of its proper divisors (285614).

571222 is a wasteful number, since it uses less digits than its factorization.

571222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285613.

The product of its digits is 280, while the sum is 19.

The square root of 571222 is about 755.7922995109. The cubic root of 571222 is about 82.9726527217.

Adding to 571222 its reverse (222175), we get a palindrome (793397).

It can be divided in two parts, 57122 and 2, that multiplied together give a square (114244 = 338²).

The spelling of 571222 in words is "five hundred seventy-one thousand, two hundred twenty-two".