822326217225 has 24 divisors (see below), whose sum is σ = 1439554603680. Its totient is φ = 412775512320.

The previous prime is 822326217179. The next prime is 822326217269. The reversal of 822326217225 is 522712623228.

It is a happy number.

It is not a de Polignac number, because 822326217225 - 2²¹ = 822324120073 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 322479595 + ... + 322482144.

It is an arithmetic number, because the mean of its divisors is an integer number (59981441820).

Almost surely, 2^822326217225 is an apocalyptic number.

822326217225 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

822326217225 is a deficient number, since it is larger than the sum of its proper divisors (617228386455).

822326217225 is a wasteful number, since it uses less digits than its factorization.

822326217225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644961769 (or 644961764 counting only the distinct ones).

The product of its digits is 322560, while the sum is 42.

The spelling of 822326217225 in words is "eight hundred twenty-two billion, three hundred twenty-six million, two hundred seventeen thousand, two hundred twenty-five".