117270221 has 4 divisors (see below), whose sum is σ = 117349344. Its totient is φ = 117191100.

The previous prime is 117270211. The next prime is 117270247. The reversal of 117270221 is 122072711.

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, and also an emirpimes, since its reverse is a distinct semiprime: 122072711 = 59 ⋅2069029.

It is a cyclic number.

It is not a de Polignac number, because 117270221 - 2¹⁸ = 117008077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117270211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37295 + ... + 40316.

It is an arithmetic number, because the mean of its divisors is an integer number (29337336).

Almost surely, 2^117270221 is an apocalyptic number.

It is an amenable number.

117270221 is a deficient number, since it is larger than the sum of its proper divisors (79123).

117270221 is an equidigital number, since it uses as much as digits as its factorization.

117270221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79122.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 117270221 is about 10829.1375926248. The cubic root of 117270221 is about 489.4735718030.

The spelling of 117270221 in words is "one hundred seventeen million, two hundred seventy thousand, two hundred twenty-one".