822231 has 10 divisors (see below), whose sum is σ = 1228392. Its totient is φ = 548100.

The previous prime is 822229. The next prime is 822233. The reversal of 822231 is 132228.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (822229) and next prime (822233).

It is not a de Polignac number, because 822231 - 2¹ = 822229 is a prime.

It is a super-2 number, since 2×822231² = 1352127634722, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 822231.

It is not an unprimeable number, because it can be changed into a prime (822233) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4995 + ... + 5156.

2⁸²²²³¹ is an apocalyptic number.

822231 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

822231 is a deficient number, since it is larger than the sum of its proper divisors (406161).

822231 is a wasteful number, since it uses less digits than its factorization.

822231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10163 (or 10154 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 822231 is about 906.7695407324. The cubic root of 822231 is about 93.6838253007.

Adding to 822231 its reverse (132228), we get a palindrome (954459).

The spelling of 822231 in words is "eight hundred twenty-two thousand, two hundred thirty-one".