203222200213 has 4 divisors (see below), whose sum is σ = 205317274540. Its totient is φ = 201127125888.

The previous prime is 203222200199. The next prime is 203222200229. The reversal of 203222200213 is 312002222302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312002222302 = 2 ⋅156001111151.

It can be written as a sum of positive squares in 2 ways, for example, as 156694847409 + 46527352804 = 395847^2 + 215702^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203222200213 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 (203222200253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1047537018 + ... + 1047537211.

It is an arithmetic number, because the mean of its divisors is an integer number (51329318635).

Almost surely, 2^203222200213 is an apocalyptic number.

It is an amenable number.

203222200213 is a deficient number, since it is larger than the sum of its proper divisors (2095074327).

203222200213 is an equidigital number, since it uses as much as digits as its factorization.

203222200213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2095074326.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 203222200213 its reverse (312002222302), we get a palindrome (515224422515).

The spelling of 203222200213 in words is "two hundred three billion, two hundred twenty-two million, two hundred thousand, two hundred thirteen".