Base | Representation |
---|---|
bin | 1001001001101000010101… |
… | …01100001000010001011101 |
3 | 2122020122122211021011212202 |
4 | 10210310022230020101131 |
5 | 10114140030341402031 |
6 | 110443544324541245 |
7 | 4144526265313544 |
oct | 444641254102135 |
9 | 78218584234782 |
10 | 20122101122141 |
11 | 645880a557337 |
12 | 230b96ab51825 |
13 | b2c67688c935 |
14 | 4d7cb466315b |
15 | 24d64e5262cb |
hex | 124d0ab0845d |
20122101122141 has 2 divisors, whose sum is σ = 20122101122142. Its totient is φ = 20122101122140.
The previous prime is 20122101122087. The next prime is 20122101122161. The reversal of 20122101122141 is 14122110122102.
It is an a-pointer prime, because the next prime (20122101122161) can be obtained adding 20122101122141 to its sum of digits (20).
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 16134850946041 + 3987250176100 = 4016821^2 + 1996810^2 .
It is a cyclic number.
It is not a de Polignac number, because 20122101122141 - 218 = 20122100859997 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (20122101122161) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061050561070 + 10061050561071.
It is an arithmetic number, because the mean of its divisors is an integer number (10061050561071).
Almost surely, 220122101122141 is an apocalyptic number.
It is an amenable number.
20122101122141 is a deficient number, since it is larger than the sum of its proper divisors (1).
20122101122141 is an equidigital number, since it uses as much as digits as its factorization.
20122101122141 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 128, while the sum is 20.
Adding to 20122101122141 its reverse (14122110122102), we get a palindrome (34244211244243).
The spelling of 20122101122141 in words is "twenty trillion, one hundred twenty-two billion, one hundred one million, one hundred twenty-two thousand, one hundred forty-one".
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