117230221 has 2 divisors, whose sum is σ = 117230222. Its totient is φ = 117230220.

The previous prime is 117230161. The next prime is 117230273. The reversal of 117230221 is 122032711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90820900 + 26409321 = 9530^2 + 5139^2 .

It is an emirp because it is prime and its reverse (122032711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117230221 - 2¹³ = 117222029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117230621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58615110 + 58615111.

It is an arithmetic number, because the mean of its divisors is an integer number (58615111).

Almost surely, 2^117230221 is an apocalyptic number.

It is an amenable number.

117230221 is a deficient number, since it is larger than the sum of its proper divisors (1).

117230221 is an equidigital number, since it uses as much as digits as its factorization.

117230221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 117230221 is about 10827.2905659726. The cubic root of 117230221 is about 489.4179135430.

Adding to 117230221 its reverse (122032711), we get a palindrome (239262932).

The spelling of 117230221 in words is "one hundred seventeen million, two hundred thirty thousand, two hundred twenty-one".