212412210 has 32 divisors (see below), whose sum is σ = 536621760. Its totient is φ = 53661888.

The previous prime is 212412203. The next prime is 212412241. The reversal of 212412210 is 12214212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 212412210.

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 15 ways as a sum of consecutive naturals, for example, 185757 + ... + 186896.

It is an arithmetic number, because the mean of its divisors is an integer number (16769430).

Almost surely, 2^212412210 is an apocalyptic number.

212412210 is an abundant number, since it is smaller than the sum of its proper divisors (324209550).

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

212412210 is a wasteful number, since it uses less digits than its factorization.

212412210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372682.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 212412210 is about 14574.3682538901. The cubic root of 212412210 is about 596.6594074763.

Adding to 212412210 its reverse (12214212), we get a palindrome (224626422).

The spelling of 212412210 in words is "two hundred twelve million, four hundred twelve thousand, two hundred ten".