Base | Representation |
---|---|
bin | 111000110100100010… |
… | …1011101001010111011 |
3 | 102122221221011001122012 |
4 | 1301221011131022323 |
5 | 3444400130402141 |
6 | 132020045320135 |
7 | 11546551632215 |
oct | 1615105351273 |
9 | 378857131565 |
10 | 122022122171 |
11 | 47827341474 |
12 | 1b794b6604b |
13 | b678108a71 |
14 | 5c97b1d5b5 |
15 | 3292787ceb |
hex | 1c6915d2bb |
122022122171 has 2 divisors, whose sum is σ = 122022122172. Its totient is φ = 122022122170.
The previous prime is 122022122143. The next prime is 122022122177. The reversal of 122022122171 is 171221220221.
It is a strong prime.
It is an emirp because it is prime and its reverse (171221220221) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 122022122171 - 210 = 122022121147 is a prime.
It is a super-2 number, since 2×1220221221712 (a number of 23 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (122022122177) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61011061085 + 61011061086.
It is an arithmetic number, because the mean of its divisors is an integer number (61011061086).
Almost surely, 2122022122171 is an apocalyptic number.
122022122171 is a deficient number, since it is larger than the sum of its proper divisors (1).
122022122171 is an equidigital number, since it uses as much as digits as its factorization.
122022122171 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 448, while the sum is 23.
Adding to 122022122171 its reverse (171221220221), we get a palindrome (293243342392).
The spelling of 122022122171 in words is "one hundred twenty-two billion, twenty-two million, one hundred twenty-two thousand, one hundred seventy-one".
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