Search a number
110221 is a prime number
BaseRepresentation
bin11010111010001101
312121012021
4122322031
512011341
62210141
7636226
oct327215
9177167
10110221
11758a1
1253951
133b227
142c24d
15229d1
hex1ae8d

110221 has 2 divisors, whose sum is σ = 110222. Its totient is φ = 110220.

The previous prime is 110183. The next prime is 110233. The reversal of 110221 is 122011.

Adding to 110221 its reverse (122011), we get a palindrome (232232).

It can be divided in two parts, 110 and 221, that multiplied together give a triangular number (24310 = T220).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75625 + 34596 = 275^2 + 186^2 .

It is an emirp because it is prime and its reverse (122011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-110221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55110 + 55111.

It is an arithmetic number, because the mean of its divisors is an integer number (55111).

2110221 is an apocalyptic number.

It is an amenable number.

110221 is a deficient number, since it is larger than the sum of its proper divisors (1).

110221 is an equidigital number, since it uses as much as digits as its factorization.

110221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 110221 is about 331.9954818970. The cubic root of 110221 is about 47.9462650989.

The spelling of 110221 in words is "one hundred ten thousand, two hundred twenty-one", and thus it is an iban number.