117221 has 8 divisors (see below), whose sum is σ = 129024. Its totient is φ = 105840.

The previous prime is 117209. The next prime is 117223. The reversal of 117221 is 122711.

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-117221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117196 and 117205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117223) 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, 860 + ... + 986.

It is an arithmetic number, because the mean of its divisors is an integer number (16128).

2¹¹⁷²²¹ is an apocalyptic number.

It is an amenable number.

117221 is a deficient number, since it is larger than the sum of its proper divisors (11803).

117221 is a wasteful number, since it uses less digits than its factorization.

117221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211.

The product of its digits is 28, while the sum is 14.

The square root of 117221 is about 342.3755248262. The cubic root of 117221 is about 48.9405081127.

Adding to 117221 its reverse (122711), we get a palindrome (239932).

The spelling of 117221 in words is "one hundred seventeen thousand, two hundred twenty-one", and thus it is an iban number.