212016650 has 24 divisors (see below), whose sum is σ = 399911904. Its totient is φ = 83610800.

The previous prime is 212016643. The next prime is 212016689. The reversal of 212016650 is 56610212.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26312 + ... + 33411.

It is an arithmetic number, because the mean of its divisors is an integer number (16662996).

Almost surely, 2^212016650 is an apocalyptic number.

212016650 is a deficient number, since it is larger than the sum of its proper divisors (187895254).

212016650 is a wasteful number, since it uses less digits than its factorization.

212016650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59806 (or 59801 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 212016650 is about 14560.7915306827. The cubic root of 212016650 is about 596.2888053480.

Adding to 212016650 its reverse (56610212), we get a palindrome (268626862).

The spelling of 212016650 in words is "two hundred twelve million, sixteen thousand, six hundred fifty".