220822 has 8 divisors (see below), whose sum is σ = 378576. Its totient is φ = 94632.

The previous prime is 220811. The next prime is 220841. The reversal of 220822 is 228022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 220796 and 220805.

It is a congruent number.

It is an unprimeable 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 in 3 ways as a sum of consecutive naturals, for example, 7873 + ... + 7900.

It is an arithmetic number, because the mean of its divisors is an integer number (47322).

2²²⁰⁸²² is an apocalyptic number.

220822 is a deficient number, since it is larger than the sum of its proper divisors (157754).

220822 is a wasteful number, since it uses less digits than its factorization.

220822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15782.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 220822 is about 469.9170139503. The cubic root of 220822 is about 60.4431996552.

Adding to 220822 its reverse (228022), we get a palindrome (448844).

The spelling of 220822 in words is "two hundred twenty thousand, eight hundred twenty-two".