212021113312 has 24 divisors (see below), whose sum is σ = 430881619392. Its totient is φ = 102590860800.

The previous prime is 212021113301. The next prime is 212021113321. The reversal of 212021113312 is 213311120212.

212021113312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 212021113312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106864489 + ... + 106866472.

It is an arithmetic number, because the mean of its divisors is an integer number (17953400808).

Almost surely, 2^212021113312 is an apocalyptic number.

It is an amenable number.

212021113312 is an abundant number, since it is smaller than the sum of its proper divisors (218860506080).

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

212021113312 is a wasteful number, since it uses less digits than its factorization.

212021113312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213731002 (or 213730994 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 212021113312 its reverse (213311120212), we get a palindrome (425332233524).

The spelling of 212021113312 in words is "two hundred twelve billion, twenty-one million, one hundred thirteen thousand, three hundred twelve".