212104312 has 32 divisors (see below), whose sum is σ = 461301120. Its totient is φ = 89543520.

The previous prime is 212104309. The next prime is 212104363. The reversal of 212104312 is 213401212.

It is a congruent number.

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, 24514 + ... + 32017.

It is an arithmetic number, because the mean of its divisors is an integer number (14415660).

Almost surely, 2^212104312 is an apocalyptic number.

It is an amenable number.

212104312 is an abundant number, since it is smaller than the sum of its proper divisors (249196808).

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

212104312 is a wasteful number, since it uses less digits than its factorization.

212104312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56611 (or 56607 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 212104312 is about 14563.8014268253. The cubic root of 212104312 is about 596.3709760433.

Adding to 212104312 its reverse (213401212), we get a palindrome (425505524).

The spelling of 212104312 in words is "two hundred twelve million, one hundred four thousand, three hundred twelve".