822210122 has 4 divisors (see below), whose sum is σ = 1233315186. Its totient is φ = 411105060.

The previous prime is 822210107. The next prime is 822210133. The reversal of 822210122 is 221012228.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 526748401 + 295461721 = 22951^2 + 17189^2 .

It is a junction number, because it is equal to n+sod(n) for n = 822210094 and 822210103.

It is an unprimeable number.

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, 205552529 + ... + 205552532.

Almost surely, 2^822210122 is an apocalyptic number.

822210122 is a deficient number, since it is larger than the sum of its proper divisors (411105064).

822210122 is a wasteful number, since it uses less digits than its factorization.

822210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411105063.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 822210122 is about 28674.2065626932. The cubic root of 822210122 is about 936.8303235748.

The spelling of 822210122 in words is "eight hundred twenty-two million, two hundred ten thousand, one hundred twenty-two".