221168113 has 8 divisors (see below), whose sum is σ = 246503520. Its totient is φ = 197202240.

The previous prime is 221168107. The next prime is 221168117. The reversal of 221168113 is 311861122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221168113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221168117) 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, 342043 + ... + 342688.

It is an arithmetic number, because the mean of its divisors is an integer number (30812940).

Almost surely, 2^221168113 is an apocalyptic number.

It is an amenable number.

221168113 is a deficient number, since it is larger than the sum of its proper divisors (25335407).

221168113 is a wasteful number, since it uses less digits than its factorization.

221168113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684767.

The product of its digits is 576, while the sum is 25.

The square root of 221168113 is about 14871.7219245116. The cubic root of 221168113 is about 604.7476241716.

The spelling of 221168113 in words is "two hundred twenty-one million, one hundred sixty-eight thousand, one hundred thirteen".