200131021212 has 24 divisors (see below), whose sum is σ = 475783184016. Its totient is φ = 65451654528.

The previous prime is 200131021177. The next prime is 200131021231. The reversal of 200131021212 is 212120131002.

200131021212 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 = 200131021191 and 200131021200.

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 7 ways as a sum of consecutive naturals, for example, 157335073 + ... + 157336344.

It is an arithmetic number, because the mean of its divisors is an integer number (19824299334).

Almost surely, 2^200131021212 is an apocalyptic number.

It is an amenable number.

200131021212 is an abundant number, since it is smaller than the sum of its proper divisors (275652162804).

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

200131021212 is a wasteful number, since it uses less digits than its factorization.

200131021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314671477 (or 314671475 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 200131021212 its reverse (212120131002), we get a palindrome (412251152214).

The spelling of 200131021212 in words is "two hundred billion, one hundred thirty-one million, twenty-one thousand, two hundred twelve".