212512312 has 32 divisors (see below), whose sum is σ = 410386320. Its totient is φ = 103092480.

The previous prime is 212512303. The next prime is 212512337. The reversal of 212512312 is 213215212.

212512312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×212512312³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 212512312.

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, 134487 + ... + 136057.

Almost surely, 2^212512312 is an apocalyptic number.

It is an amenable number.

212512312 is a deficient number, since it is larger than the sum of its proper divisors (197874008).

212512312 is a wasteful number, since it uses less digits than its factorization.

212512312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071 (or 2067 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 212512312 is about 14577.8020291126. The cubic root of 212512312 is about 596.7531205764.

Adding to 212512312 its reverse (213215212), we get a palindrome (425727524).

The spelling of 212512312 in words is "two hundred twelve million, five hundred twelve thousand, three hundred twelve".