212642250312 has 64 divisors (see below), whose sum is σ = 539321708160. Its totient is φ = 69852787200.

The previous prime is 212642250311. The next prime is 212642250323. The reversal of 212642250312 is 213052246212.

It is a self number, because there is not a number n which added to its sum of digits gives 212642250312.

It is not an unprimeable number, because it can be changed into a prime (212642250311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4188762 + ... + 4239222.

It is an arithmetic number, because the mean of its divisors is an integer number (8426901690).

Almost surely, 2^212642250312 is an apocalyptic number.

It is an amenable number.

212642250312 is an abundant number, since it is smaller than the sum of its proper divisors (326679457848).

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

212642250312 is a wasteful number, since it uses less digits than its factorization.

212642250312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53014 (or 53010 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 212642250312 its reverse (213052246212), we get a palindrome (425694496524).

The spelling of 212642250312 in words is "two hundred twelve billion, six hundred forty-two million, two hundred fifty thousand, three hundred twelve".