818225022 has 8 divisors (see below), whose sum is σ = 1636450056. Its totient is φ = 272741672.

The previous prime is 818225003. The next prime is 818225047. The reversal of 818225022 is 220522818.

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

818225022 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 68185413 + ... + 68185424.

It is an arithmetic number, because the mean of its divisors is an integer number (204556257).

Almost surely, 2^818225022 is an apocalyptic number.

818225022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

818225022 is a wasteful number, since it uses less digits than its factorization.

818225022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136370842.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 818225022 is about 28604.6328765115. The cubic root of 818225022 is about 935.3143240531.

The spelling of 818225022 in words is "eight hundred eighteen million, two hundred twenty-five thousand, twenty-two".