213200311122 has 24 divisors (see below), whose sum is σ = 462356679564. Its totient is φ = 71001743904.

The previous prime is 213200311081. The next prime is 213200311139. The reversal of 213200311122 is 221113002312.

213200311122 is a `hidden beast` number, since 21 + 320 + 0 + 311 + 12 + 2 = 666.

213200311122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 134851262841 + 78349048281 = 367221^2 + 279909^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 213200311095 and 213200311104.

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 11 ways as a sum of consecutive naturals, for example, 5398653 + ... + 5438000.

Almost surely, 2^213200311122 is an apocalyptic number.

213200311122 is an abundant number, since it is smaller than the sum of its proper divisors (249156368442).

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

213200311122 is a wasteful number, since it uses less digits than its factorization.

213200311122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10837754 (or 10837751 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 213200311122 its reverse (221113002312), we get a palindrome (434313313434).

The spelling of 213200311122 in words is "two hundred thirteen billion, two hundred million, three hundred eleven thousand, one hundred twenty-two".