212012759886 has 32 divisors (see below), whose sum is σ = 448522548480. Its totient is φ = 66672264384.

The previous prime is 212012759879. The next prime is 212012759887. The reversal of 212012759886 is 688957210212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212012759887) 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 15 ways as a sum of consecutive naturals, for example, 10512696 + ... + 10532843.

It is an arithmetic number, because the mean of its divisors is an integer number (14016329640).

Almost surely, 2^212012759886 is an apocalyptic number.

212012759886 is an abundant number, since it is smaller than the sum of its proper divisors (236509788594).

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

212012759886 is a wasteful number, since it uses less digits than its factorization.

212012759886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21045640.

The product of its (nonzero) digits is 967680, while the sum is 51.

The spelling of 212012759886 in words is "two hundred twelve billion, twelve million, seven hundred fifty-nine thousand, eight hundred eighty-six".