221311113 has 8 divisors (see below), whose sum is σ = 295562208. Its totient is φ = 147300384.

The previous prime is 221311091. The next prime is 221311121. The reversal of 221311113 is 311113122.

It is a happy number.

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

It is not a de Polignac number, because 221311113 - 2⁸ = 221310857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221311092 and 221311101.

It is not an unprimeable number, because it can be changed into a prime (221311163) 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, 57931 + ... + 61632.

It is an arithmetic number, because the mean of its divisors is an integer number (36945276).

Almost surely, 2^221311113 is an apocalyptic number.

It is an amenable number.

221311113 is a deficient number, since it is larger than the sum of its proper divisors (74251095).

221311113 is a wasteful number, since it uses less digits than its factorization.

221311113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120183.

The product of its digits is 36, while the sum is 15.

The square root of 221311113 is about 14876.5289298277. The cubic root of 221311113 is about 604.8779327073.

Adding to 221311113 its reverse (311113122), we get a palindrome (532424235).

The spelling of 221311113 in words is "two hundred twenty-one million, three hundred eleven thousand, one hundred thirteen".