202102212012 has 24 divisors (see below), whose sum is σ = 471620620800. Its totient is φ = 67360433616.

The previous prime is 202102211989. The next prime is 202102212017. The reversal of 202102212012 is 210212201202.

202102212012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 202102211982 and 202102212000.

It is not an unprimeable number, because it can be changed into a prime (202102212017) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 749812 + ... + 983067.

It is an arithmetic number, because the mean of its divisors is an integer number (19650859200).

Almost surely, 2^202102212012 is an apocalyptic number.

It is an amenable number.

202102212012 is an abundant number, since it is smaller than the sum of its proper divisors (269518408788).

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

202102212012 is a wasteful number, since it uses less digits than its factorization.

202102212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742605 (or 1742603 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 202102212012 its reverse (210212201202), we get a palindrome (412314413214).

The spelling of 202102212012 in words is "two hundred two billion, one hundred two million, two hundred twelve thousand, twelve".