212321678682 has 32 divisors (see below), whose sum is σ = 443166774912. Its totient is φ = 67687499264.

The previous prime is 212321678633. The next prime is 212321678707. The reversal of 212321678682 is 286876123212.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 944098 + ... + 1147154.

It is an arithmetic number, because the mean of its divisors is an integer number (13848961716).

Almost surely, 2^212321678682 is an apocalyptic number.

212321678682 is an abundant number, since it is smaller than the sum of its proper divisors (230845096230).

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

212321678682 is a wasteful number, since it uses less digits than its factorization.

212321678682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210662.

The product of its digits is 774144, while the sum is 48.

The spelling of 212321678682 in words is "two hundred twelve billion, three hundred twenty-one million, six hundred seventy-eight thousand, six hundred eighty-two".