221113102221013 has 4 divisors (see below), whose sum is σ = 221136458425920. Its totient is φ = 221089746016108.

The previous prime is 221113102221001. The next prime is 221113102221047. The reversal of 221113102221013 is 310122201311122.

It is a happy number.

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 221113102221013 - 2⁵ = 221113102220981 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 (221113102221073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11678088253 + ... + 11678107186.

It is an arithmetic number, because the mean of its divisors is an integer number (55284114606480).

Almost surely, 2^{221113102221013} is an apocalyptic number.

It is an amenable number.

221113102221013 is a deficient number, since it is larger than the sum of its proper divisors (23356204907).

221113102221013 is an equidigital number, since it uses as much as digits as its factorization.

221113102221013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23356204906.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 221113102221013 its reverse (310122201311122), we get a palindrome (531235303532135).

The spelling of 221113102221013 in words is "two hundred twenty-one trillion, one hundred thirteen billion, one hundred two million, two hundred twenty-one thousand, thirteen".