65222 has 4 divisors (see below), whose sum is σ = 97836. Its totient is φ = 32610.

The previous prime is 65213. The next prime is 65239. The reversal of 65222 is 22256.

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

It is a plaindrome in base 14.

It is a nialpdrome in base 10 and base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 65222.

It is a congruent number.

It is an unprimeable number.

65222 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, 16304 + ... + 16307.

It is an arithmetic number, because the mean of its divisors is an integer number (24459).

2⁶⁵²²² is an apocalyptic number.

65222 is a deficient number, since it is larger than the sum of its proper divisors (32614).

65222 is a wasteful number, since it uses less digits than its factorization.

65222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32613.

The product of its digits is 240, while the sum is 17.

The square root of 65222 is about 255.3859823874. The cubic root of 65222 is about 40.2529799885.

Adding to 65222 its reverse (22256), we get a palindrome (87478).

The spelling of 65222 in words is "sixty-five thousand, two hundred twenty-two".