216346012 has 48 divisors (see below), whose sum is σ = 416670912. Its totient is φ = 97873920.

The previous prime is 216346001. The next prime is 216346021. The reversal of 216346012 is 210643612.

216346012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202993 + ... + 204055.

It is an arithmetic number, because the mean of its divisors is an integer number (8680644).

Almost surely, 2^216346012 is an apocalyptic number.

It is an amenable number.

216346012 is a deficient number, since it is larger than the sum of its proper divisors (200324900).

216346012 is a wasteful number, since it uses less digits than its factorization.

216346012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198 (or 1196 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 216346012 is about 14708.7053135210. The cubic root of 216346012 is about 600.3202105597.

Adding to 216346012 its reverse (210643612), we get a palindrome (426989624).

The spelling of 216346012 in words is "two hundred sixteen million, three hundred forty-six thousand, twelve".