822222228 has 24 divisors (see below), whose sum is σ = 1940077440. Its totient is φ = 270994240.

The previous prime is 822222223. The next prime is 822222229.

822222228 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 822222195 and 822222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822222223) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 383868 + ... + 386003.

It is an arithmetic number, because the mean of its divisors is an integer number (80836560).

Almost surely, 2^822222228 is an apocalyptic number.

It is an amenable number.

822222228 is an abundant number, since it is smaller than the sum of its proper divisors (1117855212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

822222228 is a wasteful number, since it uses less digits than its factorization.

822222228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769967 (or 769965 counting only the distinct ones).

The product of its digits is 8192, while the sum is 30.

The square root of 822222228 is about 28674.4176575567. The cubic root of 822222228 is about 936.8349214312.

The spelling of 822222228 in words is "eight hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-eight".