221117327 has 8 divisors (see below), whose sum is σ = 228980352. Its totient is φ = 213300000.

The previous prime is 221117279. The next prime is 221117329. The reversal of 221117327 is 723711122.

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 221117327 - 2⁶ = 221117263 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221117296 and 221117305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221117329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1424 + ... + 21077.

It is an arithmetic number, because the mean of its divisors is an integer number (28622544).

Almost surely, 2^221117327 is an apocalyptic number.

221117327 is a deficient number, since it is larger than the sum of its proper divisors (7863025).

221117327 is a wasteful number, since it uses less digits than its factorization.

221117327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22849.

The product of its digits is 1176, while the sum is 26.

The square root of 221117327 is about 14870.0143577604. The cubic root of 221117327 is about 604.7013319891.

Adding to 221117327 its reverse (723711122), we get a palindrome (944828449).

The spelling of 221117327 in words is "two hundred twenty-one million, one hundred seventeen thousand, three hundred twenty-seven".