822220424 has 16 divisors (see below), whose sum is σ = 1545246720. Its totient is φ = 410154640.

The previous prime is 822220391. The next prime is 822220457. The reversal of 822220424 is 424022228.

It is an interprime number because it is at equal distance from previous prime (822220391) and next prime (822220457).

It is a junction number, because it is equal to n+sod(n) for n = 822220393 and 822220402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115784 + ... + 122679.

It is an arithmetic number, because the mean of its divisors is an integer number (96577920).

Almost surely, 2^822220424 is an apocalyptic number.

It is an amenable number.

822220424 is a deficient number, since it is larger than the sum of its proper divisors (723026296).

822220424 is a wasteful number, since it uses less digits than its factorization.

822220424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238900 (or 238896 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

The square root of 822220424 is about 28674.3862009285. The cubic root of 822220424 is about 936.8342362752.

It can be divided in two parts, 8222204 and 24, that added together give a palindrome (8222228).

The spelling of 822220424 in words is "eight hundred twenty-two million, two hundred twenty thousand, four hundred twenty-four".