212116412 has 24 divisors (see below), whose sum is σ = 403666704. Its totient is φ = 97120512.

The previous prime is 212116397. The next prime is 212116423. The reversal of 212116412 is 214611212.

It is a happy number.

212116412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39638 + ... + 44669.

It is an arithmetic number, because the mean of its divisors is an integer number (16819446).

Almost surely, 2^212116412 is an apocalyptic number.

It is an amenable number.

212116412 is a deficient number, since it is larger than the sum of its proper divisors (191550292).

212116412 is a wasteful number, since it uses less digits than its factorization.

212116412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84365 (or 84363 counting only the distinct ones).

The product of its digits is 192, while the sum is 20.

The square root of 212116412 is about 14564.2168344199. The cubic root of 212116412 is about 596.3823162993.

Adding to 212116412 its reverse (214611212), we get a palindrome (426727624).

The spelling of 212116412 in words is "two hundred twelve million, one hundred sixteen thousand, four hundred twelve".