212342412 has 12 divisors (see below), whose sum is σ = 495465656. Its totient is φ = 70780800.

The previous prime is 212342369. The next prime is 212342443. The reversal of 212342412 is 214243212.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8847589 + ... + 8847612.

Almost surely, 2^212342412 is an apocalyptic number.

It is an amenable number.

212342412 is an abundant number, since it is smaller than the sum of its proper divisors (283123244).

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

212342412 is a wasteful number, since it uses less digits than its factorization.

212342412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17695208 (or 17695206 counting only the distinct ones).

The product of its digits is 768, while the sum is 21.

The square root of 212342412 is about 14571.9735108186. The cubic root of 212342412 is about 596.5940468336.

Adding to 212342412 its reverse (214243212), we get a palindrome (426585624).

The spelling of 212342412 in words is "two hundred twelve million, three hundred forty-two thousand, four hundred twelve".