85222 has 4 divisors (see below), whose sum is σ = 127836. Its totient is φ = 42610.

The previous prime is 85213. The next prime is 85223. The reversal of 85222 is 22258.

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

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 85222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21304 + ... + 21307.

It is an arithmetic number, because the mean of its divisors is an integer number (31959).

2⁸⁵²²² is an apocalyptic number.

85222 is a deficient number, since it is larger than the sum of its proper divisors (42614).

85222 is a wasteful number, since it uses less digits than its factorization.

85222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42613.

The product of its digits is 320, while the sum is 19.

The square root of 85222 is about 291.9280733331. The cubic root of 85222 is about 44.0065417271.

The spelling of 85222 in words is "eighty-five thousand, two hundred twenty-two".