213210210 has 48 divisors (see below), whose sum is σ = 540081216. Its totient is φ = 53860896.

The previous prime is 213210203. The next prime is 213210241. The reversal of 213210210 is 12012312.

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 23 ways as a sum of consecutive naturals, for example, 987 + ... + 20673.

It is an arithmetic number, because the mean of its divisors is an integer number (11251692).

Almost surely, 2^213210210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213210210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270040608).

213210210 is an abundant number, since it is smaller than the sum of its proper divisors (326871006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213210210 is a wasteful number, since it uses less digits than its factorization.

213210210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19735 (or 19716 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 213210210 is about 14601.7194193013. The cubic root of 213210210 is about 597.4056596090.

Adding to 213210210 its reverse (12012312), we get a palindrome (225222522).

The spelling of 213210210 in words is "two hundred thirteen million, two hundred ten thousand, two hundred ten".