213130122201 has 12 divisors (see below), whose sum is σ = 316175016612. Its totient is φ = 138246565536.

The previous prime is 213130122091. The next prime is 213130122209. The reversal of 213130122201 is 102221031312.

213130122201 is a `hidden beast` number, since 213 + 130 + 122 + 201 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 101330168976 + 111799953225 = 318324^2 + 334365^2 .

It is not a de Polignac number, because 213130122201 - 2¹¹ = 213130120153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213130122209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 320014866 + ... + 320015531.

It is an arithmetic number, because the mean of its divisors is an integer number (26347918051).

Almost surely, 2^213130122201 is an apocalyptic number.

It is an amenable number.

213130122201 is a deficient number, since it is larger than the sum of its proper divisors (103044894411).

213130122201 is a wasteful number, since it uses less digits than its factorization.

213130122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640030440 (or 640030437 counting only the distinct ones).

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

Adding to 213130122201 its reverse (102221031312), we get a palindrome (315351153513).

The spelling of 213130122201 in words is "two hundred thirteen billion, one hundred thirty million, one hundred twenty-two thousand, two hundred one".