Base | Representation |
---|---|
bin | 111000010110101101… |
… | …0110111010000101110 |
3 | 102120101011112220212210 |
4 | 1300231122313100232 |
5 | 3440322400213402 |
6 | 131332450111250 |
7 | 11513005246356 |
oct | 1605532672056 |
9 | 376334486783 |
10 | 121021101102 |
11 | 47363290530 |
12 | 1b55587b526 |
13 | b548901bc5 |
14 | 5c00bc7b66 |
15 | 323495406c |
hex | 1c2d6b742e |
121021101102 has 16 divisors (see below), whose sum is σ = 264046038912. Its totient is φ = 36673060920.
The previous prime is 121021101067. The next prime is 121021101133. The reversal of 121021101102 is 201101120121.
It is a super-2 number, since 2×1210211011022 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 916826458 + ... + 916826589.
It is an arithmetic number, because the mean of its divisors is an integer number (16502877432).
Almost surely, 2121021101102 is an apocalyptic number.
121021101102 is an abundant number, since it is smaller than the sum of its proper divisors (143024937810).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121021101102 is a wasteful number, since it uses less digits than its factorization.
121021101102 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1833653063.
The product of its (nonzero) digits is 8, while the sum is 12.
Adding to 121021101102 its reverse (201101120121), we get a palindrome (322122221223).
The spelling of 121021101102 in words is "one hundred twenty-one billion, twenty-one million, one hundred one thousand, one hundred two".
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