Search a number
-
+
1110230221 is a prime number
BaseRepresentation
bin100001000101100…
…1100010011001101
32212101002112112211
41002023030103031
54233204331341
6302100030421
736340541542
oct10213142315
92771075484
101110230221
1151a772441
1226b992411
13149023279
14a7642bc9
1567707181
hex422cc4cd

1110230221 has 2 divisors, whose sum is σ = 1110230222. Its totient is φ = 1110230220.

The previous prime is 1110230197. The next prime is 1110230227. The reversal of 1110230221 is 1220320111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1006475625 + 103754596 = 31725^2 + 10186^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110230221 - 223 = 1101841613 is a prime.

It is a super-2 number, since 2×11102302212 = 2465222287243417682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1110230227) 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 as a sum of consecutive naturals, namely, 555115110 + 555115111.

It is an arithmetic number, because the mean of its divisors is an integer number (555115111).

Almost surely, 21110230221 is an apocalyptic number.

It is an amenable number.

1110230221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110230221 is an equidigital number, since it uses as much as digits as its factorization.

1110230221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1110230221 is about 33320.1173617381. The cubic root of 1110230221 is about 1035.4703832473.

Adding to 1110230221 its reverse (1220320111), we get a palindrome (2330550332).

The spelling of 1110230221 in words is "one billion, one hundred ten million, two hundred thirty thousand, two hundred twenty-one".