Base | Representation |
---|---|
bin | 100100011010111… |
… | …1111101110100011 |
3 | 10011011121211112022 |
4 | 1020311333232203 |
5 | 10000330123321 |
6 | 321134052055 |
7 | 42166541123 |
oct | 11065775643 |
9 | 3134554468 |
10 | 1222114211 |
11 | 57794054a |
12 | 2a134a02b |
13 | 166268006 |
14 | b8448c83 |
15 | 72457dab |
hex | 48d7fba3 |
1222114211 has 2 divisors, whose sum is σ = 1222114212. Its totient is φ = 1222114210.
The previous prime is 1222114171. The next prime is 1222114217. The reversal of 1222114211 is 1124112221.
It is a strong prime.
It is an emirp because it is prime and its reverse (1124112221) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1222114211 - 222 = 1217919907 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 1222114211.
It is not a weakly prime, because it can be changed into another prime (1222114217) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611057105 + 611057106.
It is an arithmetic number, because the mean of its divisors is an integer number (611057106).
Almost surely, 21222114211 is an apocalyptic number.
1222114211 is a deficient number, since it is larger than the sum of its proper divisors (1).
1222114211 is an equidigital number, since it uses as much as digits as its factorization.
1222114211 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 64, while the sum is 17.
The square root of 1222114211 is about 34958.7501349805. The cubic root of 1222114211 is about 1069.1466136432.
Adding to 1222114211 its reverse (1124112221), we get a palindrome (2346226432).
The spelling of 1222114211 in words is "one billion, two hundred twenty-two million, one hundred fourteen thousand, two hundred eleven".
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