Base | Representation |
---|---|
bin | 10001101000111101011… |
… | …010011000000100110000 |
3 | 11021212221002001100211111 |
4 | 101220331122120010300 |
5 | 124330102020231000 |
6 | 2324514310523104 |
7 | 153402502233343 |
oct | 21507532300460 |
9 | 4255832040744 |
10 | 1212211102000 |
11 | 428106623828 |
12 | 176b27066494 |
13 | 8a4073c2b52 |
14 | 429581b845a |
15 | 217ebc59cba |
hex | 11a3d698130 |
1212211102000 has 80 divisors (see below), whose sum is σ = 2931488917344. Its totient is φ = 484824480000.
The previous prime is 1212211101977. The next prime is 1212211102031. The reversal of 1212211102000 is 2011122121.
It is a tau number, because it is divible by the number of its divisors (80).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18409135 + ... + 18474865.
Almost surely, 21212211102000 is an apocalyptic number.
1212211102000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1212211102000 is an abundant number, since it is smaller than the sum of its proper divisors (1719277815344).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1212211102000 is an equidigital number, since it uses as much as digits as its factorization.
1212211102000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 74975 (or 74959 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 13.
Adding to 1212211102000 its reverse (2011122121), we get a palindrome (1214222224121).
It can be divided in two parts, 121221 and 1102000, that added together give a palindrome (1223221).
The spelling of 1212211102000 in words is "one trillion, two hundred twelve billion, two hundred eleven million, one hundred two thousand".
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