212031332 has 12 divisors (see below), whose sum is σ = 371554176. Its totient is φ = 105873000.

The previous prime is 212031311. The next prime is 212031343. The reversal of 212031332 is 233130212.

212031332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 212031332.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32288 + ... + 38295.

It is an arithmetic number, because the mean of its divisors is an integer number (30962848).

Almost surely, 2^212031332 is an apocalyptic number.

It is an amenable number.

212031332 is a deficient number, since it is larger than the sum of its proper divisors (159522844).

212031332 is a wasteful number, since it uses less digits than its factorization.

212031332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71338 (or 71336 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 212031332 is about 14561.2956841072. The cubic root of 212031332 is about 596.3025692201.

Adding to 212031332 its reverse (233130212), we get a palindrome (445161544).

The spelling of 212031332 in words is "two hundred twelve million, thirty-one thousand, three hundred thirty-two".