212236252 has 6 divisors (see below), whose sum is σ = 371413448. Its totient is φ = 106118124.

The previous prime is 212236247. The next prime is 212236259. The reversal of 212236252 is 252632212.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212236259) 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 as a sum of consecutive naturals, namely, 26529528 + ... + 26529535.

Almost surely, 2^212236252 is an apocalyptic number.

It is an amenable number.

212236252 is a deficient number, since it is larger than the sum of its proper divisors (159177196).

212236252 is a wasteful number, since it uses less digits than its factorization.

212236252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53059067 (or 53059065 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 212236252 is about 14568.3304465543. The cubic root of 212236252 is about 596.4946084140.

Adding to 212236252 its reverse (252632212), we get a palindrome (464868464).

The spelling of 212236252 in words is "two hundred twelve million, two hundred thirty-six thousand, two hundred fifty-two".