852197222 has 4 divisors (see below), whose sum is σ = 1278295836. Its totient is φ = 426098610.

The previous prime is 852197221. The next prime is 852197237. The reversal of 852197222 is 222791258.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (852197221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213049304 + ... + 213049307.

It is an arithmetic number, because the mean of its divisors is an integer number (319573959).

Almost surely, 2^852197222 is an apocalyptic number.

852197222 is a deficient number, since it is larger than the sum of its proper divisors (426098614).

852197222 is a wasteful number, since it uses less digits than its factorization.

852197222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426098613.

The product of its digits is 40320, while the sum is 38.

The square root of 852197222 is about 29192.4172003622. The cubic root of 852197222 is about 948.0837539574.

The spelling of 852197222 in words is "eight hundred fifty-two million, one hundred ninety-seven thousand, two hundred twenty-two".