201210218 has 32 divisors (see below), whose sum is σ = 340599168. Its totient is φ = 88344000.

The previous prime is 201210211. The next prime is 201210223. The reversal of 201210218 is 812012102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201210196 and 201210205.

It is not an unprimeable number, because it can be changed into a prime (201210211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122096 + ... + 123732.

It is an arithmetic number, because the mean of its divisors is an integer number (10643724).

Almost surely, 2^201210218 is an apocalyptic number.

201210218 is a deficient number, since it is larger than the sum of its proper divisors (139388950).

201210218 is a wasteful number, since it uses less digits than its factorization.

201210218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 201210218 is about 14184.8587585496. The cubic root of 201210218 is about 585.9807426878.

The spelling of 201210218 in words is "two hundred one million, two hundred ten thousand, two hundred eighteen".