221323302113 has 4 divisors (see below), whose sum is σ = 221338341168. Its totient is φ = 221308263060.

The previous prime is 221323302043. The next prime is 221323302121. The reversal of 221323302113 is 311203323122.

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 221323302113 - 2²⁴ = 221306524897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221323302713) 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, 7497431 + ... + 7526892.

It is an arithmetic number, because the mean of its divisors is an integer number (55334585292).

Almost surely, 2^221323302113 is an apocalyptic number.

It is an amenable number.

221323302113 is a deficient number, since it is larger than the sum of its proper divisors (15039055).

221323302113 is a wasteful number, since it uses less digits than its factorization.

221323302113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15039054.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 221323302113 its reverse (311203323122), we get a palindrome (532526625235).

The spelling of 221323302113 in words is "two hundred twenty-one billion, three hundred twenty-three million, three hundred two thousand, one hundred thirteen".