213122201133 has 4 divisors (see below), whose sum is σ = 284162934848. Its totient is φ = 142081467420.

The previous prime is 213122201087. The next prime is 213122201161. The reversal of 213122201133 is 331102221312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 213122201133 - 2⁸ = 213122200877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213122201233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35520366853 + ... + 35520366858.

It is an arithmetic number, because the mean of its divisors is an integer number (71040733712).

Almost surely, 2^213122201133 is an apocalyptic number.

It is an amenable number.

213122201133 is a deficient number, since it is larger than the sum of its proper divisors (71040733715).

213122201133 is an equidigital number, since it uses as much as digits as its factorization.

213122201133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71040733714.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 213122201133 its reverse (331102221312), we get a palindrome (544224422445).

The spelling of 213122201133 in words is "two hundred thirteen billion, one hundred twenty-two million, two hundred one thousand, one hundred thirty-three".