213201131212 has 12 divisors (see below), whose sum is σ = 378670666360. Its totient is φ = 105009512256.

The previous prime is 213201131203. The next prime is 213201131219. The reversal of 213201131212 is 212131102312.

213201131212 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 213201131212.

It is not an unprimeable number, because it can be changed into a prime (213201131219) 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 3 ways as a sum of consecutive naturals, for example, 397763037 + ... + 397763572.

Almost surely, 2^213201131212 is an apocalyptic number.

It is an amenable number.

213201131212 is a deficient number, since it is larger than the sum of its proper divisors (165469535148).

213201131212 is a wasteful number, since it uses less digits than its factorization.

213201131212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795526680 (or 795526678 counting only the distinct ones).

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

Adding to 213201131212 its reverse (212131102312), we get a palindrome (425332233524).

The spelling of 213201131212 in words is "two hundred thirteen billion, two hundred one million, one hundred thirty-one thousand, two hundred twelve".