Base | Representation |
---|---|
bin | 11011100010100011101111… |
… | …110111101110111101010111 |
3 | 120212212011022112212102121011 |
4 | 123202203233313232331113 |
5 | 111333431031120041322 |
6 | 1105334420415233051 |
7 | 34340532413600236 |
oct | 3342435767567527 |
9 | 525764275772534 |
10 | 121122102112087 |
11 | 3565865aaa513a |
12 | 11702336b18787 |
13 | 52779c4259b7b |
14 | 21ca4aba98b1d |
15 | e009e56a5677 |
hex | 6e28efdeef57 |
121122102112087 has 2 divisors, whose sum is σ = 121122102112088. Its totient is φ = 121122102112086.
The previous prime is 121122102111977. The next prime is 121122102112093. The reversal of 121122102112087 is 780211201221121.
It is a happy number.
It is a strong prime.
It is an emirp because it is prime and its reverse (780211201221121) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 121122102112087 - 227 = 121121967894359 is a prime.
It is a super-2 number, since 2×1211221021120872 (a number of 29 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (121122102112097) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60561051056043 + 60561051056044.
It is an arithmetic number, because the mean of its divisors is an integer number (60561051056044).
Almost surely, 2121122102112087 is an apocalyptic number.
121122102112087 is a deficient number, since it is larger than the sum of its proper divisors (1).
121122102112087 is an equidigital number, since it uses as much as digits as its factorization.
121122102112087 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1792, while the sum is 31.
The spelling of 121122102112087 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, one hundred two million, one hundred twelve thousand, eighty-seven".
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