212021202312 has 96 divisors (see below), whose sum is σ = 630726782400. Its totient is φ = 64043008128.

The previous prime is 212021202299. The next prime is 212021202353. The reversal of 212021202312 is 213202120212.

212021202312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 23 ways as a sum of consecutive naturals, for example, 3337803 + ... + 3400730.

It is an arithmetic number, because the mean of its divisors is an integer number (6570070650).

Almost surely, 2^212021202312 is an apocalyptic number.

It is an amenable number.

212021202312 is an abundant number, since it is smaller than the sum of its proper divisors (418705580088).

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

212021202312 is a wasteful number, since it uses less digits than its factorization.

212021202312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6738587 (or 6738580 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 212021202312 its reverse (213202120212), we get a palindrome (425223322524).

The spelling of 212021202312 in words is "two hundred twelve billion, twenty-one million, two hundred two thousand, three hundred twelve".