221313113 has 8 divisors (see below), whose sum is σ = 255385728. Its totient is φ = 187854624.

The previous prime is 221313101. The next prime is 221313133. The reversal of 221313113 is 311313122.

221313113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221313113 - 2⁴ = 221313097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221313091 and 221313100.

It is not an unprimeable number, because it can be changed into a prime (221313133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152756 + ... + 154197.

It is an arithmetic number, because the mean of its divisors is an integer number (31923216).

Almost surely, 2^221313113 is an apocalyptic number.

It is an amenable number.

221313113 is a deficient number, since it is larger than the sum of its proper divisors (34072615).

221313113 is a wasteful number, since it uses less digits than its factorization.

221313113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307063.

The product of its digits is 108, while the sum is 17.

The square root of 221313113 is about 14876.5961496574. The cubic root of 221313113 is about 604.8797548062.

Adding to 221313113 its reverse (311313122), we get a palindrome (532626235).

Subtracting 221313113 from its reverse (311313122), we obtain a palindrome (90000009).

The spelling of 221313113 in words is "two hundred twenty-one million, three hundred thirteen thousand, one hundred thirteen".