822212 has 6 divisors (see below), whose sum is σ = 1438878. Its totient is φ = 411104.

The previous prime is 822197. The next prime is 822221. The reversal of 822212 is 212228.

It can be written as a sum of positive squares in only one way, i.e., 430336 + 391876 = 656^2 + 626^2 .

It is an unprimeable number.

822212 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102773 + ... + 102780.

It is an arithmetic number, because the mean of its divisors is an integer number (239813).

2⁸²²²¹² is an apocalyptic number.

It is an amenable number.

822212 is a deficient number, since it is larger than the sum of its proper divisors (616666).

822212 is a wasteful number, since it uses less digits than its factorization.

822212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205557 (or 205555 counting only the distinct ones).

The product of its digits is 128, while the sum is 17.

The square root of 822212 is about 906.7590639194. The cubic root of 822212 is about 93.6831036842.

The spelling of 822212 in words is "eight hundred twenty-two thousand, two hundred twelve".