822021361 has 8 divisors (see below), whose sum is σ = 957178944. Its totient is φ = 691295280.

The previous prime is 822021337. The next prime is 822021373. The reversal of 822021361 is 163120228.

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

It is a cyclic number.

It is not a de Polignac number, because 822021361 - 2⁵ = 822021329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (822021461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1107475 + ... + 1108216.

It is an arithmetic number, because the mean of its divisors is an integer number (119647368).

Almost surely, 2^822021361 is an apocalyptic number.

It is an amenable number.

822021361 is a deficient number, since it is larger than the sum of its proper divisors (135157583).

822021361 is a wasteful number, since it uses less digits than its factorization.

822021361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2215751.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 822021361 is about 28670.9148964591. The cubic root of 822021361 is about 936.7586263455.

Adding to 822021361 its reverse (163120228), we get a palindrome (985141589).

The spelling of 822021361 in words is "eight hundred twenty-two million, twenty-one thousand, three hundred sixty-one".