212215182 has 16 divisors (see below), whose sum is σ = 449397072. Its totient is φ = 66577280.

The previous prime is 212215177. The next prime is 212215189. The reversal of 212215182 is 281512212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212215189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1040169 + ... + 1040372.

It is an arithmetic number, because the mean of its divisors is an integer number (28087317).

Almost surely, 2^212215182 is an apocalyptic number.

212215182 is an abundant number, since it is smaller than the sum of its proper divisors (237181890).

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

212215182 is a wasteful number, since it uses less digits than its factorization.

212215182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2080563.

The product of its digits is 640, while the sum is 24.

The square root of 212215182 is about 14567.6072846573. The cubic root of 212215182 is about 596.4748685295.

Adding to 212215182 its reverse (281512212), we get a palindrome (493727394).

The spelling of 212215182 in words is "two hundred twelve million, two hundred fifteen thousand, one hundred eighty-two".