213203222221013 has 4 divisors (see below), whose sum is σ = 216206084505888. Its totient is φ = 210200359936140.

The previous prime is 213203222220977. The next prime is 213203222221019. The reversal of 213203222221013 is 310122222302312.

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 a cyclic number.

It is not a de Polignac number, because 213203222221013 - 2⁸ = 213203222220757 is a prime.

It is a super-2 number, since 2×213203222221013² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213203222221019) 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, 1501431142331 + ... + 1501431142472.

It is an arithmetic number, because the mean of its divisors is an integer number (54051521126472).

Almost surely, 2^{213203222221013} is an apocalyptic number.

It is an amenable number.

213203222221013 is a deficient number, since it is larger than the sum of its proper divisors (3002862284875).

213203222221013 is an equidigital number, since it uses as much as digits as its factorization.

213203222221013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3002862284874.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 213203222221013 its reverse (310122222302312), we get a palindrome (523325444523325).

The spelling of 213203222221013 in words is "two hundred thirteen trillion, two hundred three billion, two hundred twenty-two million, two hundred twenty-one thousand, thirteen".