7182212172 has 24 divisors (see below), whose sum is σ = 16783050816. Its totient is φ = 2390562768.

The previous prime is 7182212159. The next prime is 7182212179. The reversal of 7182212172 is 2712122817.

It is not an unprimeable number, because it can be changed into a prime (7182212179) 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, 429958 + ... + 446349.

It is an arithmetic number, because the mean of its divisors is an integer number (699293784).

Almost surely, 2^7182212172 is an apocalyptic number.

It is an amenable number.

7182212172 is an abundant number, since it is smaller than the sum of its proper divisors (9600838644).

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

7182212172 is a wasteful number, since it uses less digits than its factorization.

7182212172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876997 (or 876995 counting only the distinct ones).

The product of its digits is 6272, while the sum is 33.

The square root of 7182212172 is about 84747.9331429387. The cubic root of 7182212172 is about 1929.3872764808.

Adding to 7182212172 its reverse (2712122817), we get a palindrome (9894334989).

The spelling of 7182212172 in words is "seven billion, one hundred eighty-two million, two hundred twelve thousand, one hundred seventy-two".