212313440412 has 24 divisors (see below), whose sum is σ = 550442253200. Its totient is φ = 70771146768.

The previous prime is 212313440407. The next prime is 212313440459. The reversal of 212313440412 is 214044313212.

212313440412 is a `hidden beast` number, since 2 + 123 + 134 + 404 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 982932487 + ... + 982932702.

Almost surely, 2^212313440412 is an apocalyptic number.

It is an amenable number.

212313440412 is an abundant number, since it is smaller than the sum of its proper divisors (338128812788).

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

212313440412 is a wasteful number, since it uses less digits than its factorization.

212313440412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965865202 (or 1965865194 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 212313440412 its reverse (214044313212), we get a palindrome (426357753624).

It can be divided in two parts, 21231 and 3440412, that added together give a palindrome (3461643).

The spelling of 212313440412 in words is "two hundred twelve billion, three hundred thirteen million, four hundred forty thousand, four hundred twelve".