212404124 has 12 divisors (see below), whose sum is σ = 381753624. Its totient is φ = 103331664.

The previous prime is 212404123. The next prime is 212404151. The reversal of 212404124 is 421404212.

It is a junction number, because it is equal to n+sod(n) for n = 212404096 and 212404105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212404123) 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 3 ways as a sum of consecutive naturals, for example, 717434 + ... + 717729.

It is an arithmetic number, because the mean of its divisors is an integer number (31812802).

Almost surely, 2^212404124 is an apocalyptic number.

It is an amenable number.

212404124 is a deficient number, since it is larger than the sum of its proper divisors (169349500).

212404124 is a wasteful number, since it uses less digits than its factorization.

212404124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435204 (or 1435202 counting only the distinct ones).

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

The square root of 212404124 is about 14574.0908464302. The cubic root of 212404124 is about 596.6518362712.

Adding to 212404124 its reverse (421404212), we get a palindrome (633808336).

The spelling of 212404124 in words is "two hundred twelve million, four hundred four thousand, one hundred twenty-four".