201212210 has 16 divisors (see below), whose sum is σ = 366768000. Its totient is φ = 79465776.

The previous prime is 201212161. The next prime is 201212273. The reversal of 201212210 is 12212102.

It is a happy number.

201212210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 201212191 and 201212200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126560 + ... + 128139.

It is an arithmetic number, because the mean of its divisors is an integer number (22923000).

Almost surely, 2^201212210 is an apocalyptic number.

201212210 is a deficient number, since it is larger than the sum of its proper divisors (165555790).

201212210 is a wasteful number, since it uses less digits than its factorization.

201212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254785.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 201212210 is about 14184.9289740908. The cubic root of 201212210 is about 585.9826764362.

Adding to 201212210 its reverse (12212102), we get a palindrome (213424312).

The spelling of 201212210 in words is "two hundred one million, two hundred twelve thousand, two hundred ten".