Base | Representation |
---|---|
bin | 11011100000111011100011… |
… | …001111111011101000010011 |
3 | 120212110110112101012022120021 |
4 | 123200323203033323220103 |
5 | 111330112413111430224 |
6 | 1105211154515124311 |
7 | 34326462042545566 |
oct | 3340734317735023 |
9 | 525413471168507 |
10 | 121010221201939 |
11 | 35615168158433 |
12 | 116a47122a3697 |
13 | 526a2a41814a4 |
14 | 21c4cd6b7a4dd |
15 | decb483c11e4 |
hex | 6e0ee33fba13 |
121010221201939 has 2 divisors, whose sum is σ = 121010221201940. Its totient is φ = 121010221201938.
The previous prime is 121010221201937. The next prime is 121010221201963. The reversal of 121010221201939 is 939102122010121.
It is a happy number.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 121010221201939 - 21 = 121010221201937 is a prime.
Together with 121010221201937, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (121010221201937) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505110600969 + 60505110600970.
It is an arithmetic number, because the mean of its divisors is an integer number (60505110600970).
Almost surely, 2121010221201939 is an apocalyptic number.
121010221201939 is a deficient number, since it is larger than the sum of its proper divisors (1).
121010221201939 is an equidigital number, since it uses as much as digits as its factorization.
121010221201939 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 3888, while the sum is 34.
The spelling of 121010221201939 in words is "one hundred twenty-one trillion, ten billion, two hundred twenty-one million, two hundred one thousand, nine hundred thirty-nine".
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