Base | Representation |
---|---|
bin | 11011100101010010110000… |
… | …110001101011101000100101 |
3 | 120220112010101000112001000002 |
4 | 123211102300301223220211 |
5 | 111400020411130401041 |
6 | 1110001015501231045 |
7 | 34360234302405305 |
oct | 3345226061535045 |
9 | 526463330461002 |
10 | 121310022122021 |
11 | 35720322a3aa77 |
12 | 11732840b62485 |
13 | 528c641988815 |
14 | 21d5617699605 |
15 | e0584335859b |
hex | 6e54b0c6ba25 |
121310022122021 has 8 divisors (see below), whose sum is σ = 121651834427424. Its totient is φ = 120968594960080.
The previous prime is 121310022121993. The next prime is 121310022122059. The reversal of 121310022122021 is 120221220013121.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 121310022122021 - 26 = 121310022121957 is a prime.
It is a super-2 number, since 2×1213100221220212 (a number of 29 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 121310022121984 and 121310022122002.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121310022122221) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95655026 + ... + 96914931.
It is an arithmetic number, because the mean of its divisors is an integer number (15206479303428).
Almost surely, 2121310022122021 is an apocalyptic number.
It is an amenable number.
121310022122021 is a deficient number, since it is larger than the sum of its proper divisors (341812305403).
121310022122021 is a wasteful number, since it uses less digits than its factorization.
121310022122021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 192571731.
The product of its (nonzero) digits is 192, while the sum is 20.
Adding to 121310022122021 its reverse (120221220013121), we get a palindrome (241531242135142).
The spelling of 121310022122021 in words is "one hundred twenty-one trillion, three hundred ten billion, twenty-two million, one hundred twenty-two thousand, twenty-one".
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