212331306888 has 48 divisors (see below), whose sum is σ = 575085139200. Its totient is φ = 70774495200.

The previous prime is 212331306881. The next prime is 212331306937. The reversal of 212331306888 is 888603133212.

212331306888 is a `hidden beast` number, since 2 + 1 + 2 + 331 + 306 + 8 + 8 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (212331306881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3808413 + ... + 3863763.

It is an arithmetic number, because the mean of its divisors is an integer number (11980940400).

Almost surely, 2^212331306888 is an apocalyptic number.

It is an amenable number.

212331306888 is an abundant number, since it is smaller than the sum of its proper divisors (362753832312).

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

212331306888 is a wasteful number, since it uses less digits than its factorization.

212331306888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108642 (or 108635 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 212331306888 in words is "two hundred twelve billion, three hundred thirty-one million, three hundred six thousand, eight hundred eighty-eight".