212440314312 has 48 divisors (see below), whose sum is σ = 577766592000. Its totient is φ = 70517141856.

The previous prime is 212440314311. The next prime is 212440314319. The reversal of 212440314312 is 213413044212.

212440314312 is a `hidden beast` number, since 212 + 4 + 403 + 1 + 43 + 1 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (212440314311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6155512 + ... + 6189927.

It is an arithmetic number, because the mean of its divisors is an integer number (12036804000).

Almost surely, 2^212440314312 is an apocalyptic number.

It is an amenable number.

212440314312 is an abundant number, since it is smaller than the sum of its proper divisors (365326277688).

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

212440314312 is a wasteful number, since it uses less digits than its factorization.

212440314312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12345690 (or 12345683 counting only the distinct ones).

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

Adding to 212440314312 its reverse (213413044212), we get a palindrome (425853358524).

The spelling of 212440314312 in words is "two hundred twelve billion, four hundred forty million, three hundred fourteen thousand, three hundred twelve".