210513212 has 36 divisors (see below), whose sum is σ = 461515320. Its totient is φ = 83278944.

The previous prime is 210513211. The next prime is 210513271. The reversal of 210513212 is 212315012.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210513211) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 38762 + ... + 43857.

It is an arithmetic number, because the mean of its divisors is an integer number (12819870).

Almost surely, 2^210513212 is an apocalyptic number.

It is an amenable number.

210513212 is an abundant number, since it is smaller than the sum of its proper divisors (251002108).

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

210513212 is a wasteful number, since it uses less digits than its factorization.

210513212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82650 (or 82641 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 210513212 is about 14509.0734369911. The cubic root of 210513212 is about 594.8760064577.

Adding to 210513212 its reverse (212315012), we get a palindrome (422828224).

The spelling of 210513212 in words is "two hundred ten million, five hundred thirteen thousand, two hundred twelve".