212104424 has 32 divisors (see below), whose sum is σ = 466798080. Its totient is φ = 88444224.

The previous prime is 212104397. The next prime is 212104447. The reversal of 212104424 is 424401212.

It is a junction number, because it is equal to n+sod(n) for n = 212104396 and 212104405.

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 7 ways as a sum of consecutive naturals, for example, 49112 + ... + 53255.

It is an arithmetic number, because the mean of its divisors is an integer number (14587440).

Almost surely, 2^212104424 is an apocalyptic number.

It is an amenable number.

212104424 is an abundant number, since it is smaller than the sum of its proper divisors (254693656).

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

212104424 is a wasteful number, since it uses less digits than its factorization.

212104424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102417 (or 102413 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 212104424 is about 14563.8052719748. The cubic root of 212104424 is about 596.3710810130.

Adding to 212104424 its reverse (424401212), we get a palindrome (636505636).

The spelling of 212104424 in words is "two hundred twelve million, one hundred four thousand, four hundred twenty-four".