117342221 has 4 divisors (see below), whose sum is σ = 119838912. Its totient is φ = 114845532.

The previous prime is 117342193. The next prime is 117342241. The reversal of 117342221 is 122243711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 117342221 - 2¹⁰ = 117341197 is a prime.

It is a super-3 number, since 3×117342221³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117342241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1248275 + ... + 1248368.

It is an arithmetic number, because the mean of its divisors is an integer number (29959728).

Almost surely, 2^117342221 is an apocalyptic number.

It is an amenable number.

117342221 is a deficient number, since it is larger than the sum of its proper divisors (2496691).

117342221 is an equidigital number, since it uses as much as digits as its factorization.

117342221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2496690.

The product of its digits is 672, while the sum is 23.

The square root of 117342221 is about 10832.4614469658. The cubic root of 117342221 is about 489.5737247854.

Adding to 117342221 its reverse (122243711), we get a palindrome (239585932).

The spelling of 117342221 in words is "one hundred seventeen million, three hundred forty-two thousand, two hundred twenty-one".