216110252 has 12 divisors (see below), whose sum is σ = 378414456. Its totient is φ = 107991840.

The previous prime is 216110227. The next prime is 216110261. The reversal of 216110252 is 252011612.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7673 + ... + 22160.

It is an arithmetic number, because the mean of its divisors is an integer number (31534538).

Almost surely, 2^216110252 is an apocalyptic number.

It is an amenable number.

216110252 is a deficient number, since it is larger than the sum of its proper divisors (162304204).

216110252 is a wasteful number, since it uses less digits than its factorization.

216110252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31648 (or 31646 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 216110252 is about 14700.6888273985. The cubic root of 216110252 is about 600.1020678211.

Adding to 216110252 its reverse (252011612), we get a palindrome (468121864).

The spelling of 216110252 in words is "two hundred sixteen million, one hundred ten thousand, two hundred fifty-two".