Base | Representation |
---|---|
bin | 10001110010001100101… |
… | …000110001010011100100 |
3 | 11022211112100121021000121 |
4 | 101302030220301103210 |
5 | 130010410313210040 |
6 | 2333234443451324 |
7 | 154203345245536 |
oct | 21621450612344 |
9 | 4284470537017 |
10 | 1222130210020 |
11 | 431336708465 |
12 | 178a34b26b44 |
13 | 8b3283c9c35 |
14 | 432196c1856 |
15 | 21bcc989c4a |
hex | 11c8ca314e4 |
1222130210020 has 12 divisors (see below), whose sum is σ = 2566473441084. Its totient is φ = 488852084000.
The previous prime is 1222130209987. The next prime is 1222130210039. The reversal of 1222130210020 is 200120312221.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 127461852324 + 1094668357696 = 357018^2 + 1046264^2 .
It is a junction number, because it is equal to n+sod(n) for n = 1222130209976 and 1222130210003.
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 3 ways as a sum of consecutive naturals, for example, 30553255231 + ... + 30553255270.
It is an arithmetic number, because the mean of its divisors is an integer number (213872786757).
Almost surely, 21222130210020 is an apocalyptic number.
1222130210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1222130210020 is an abundant number, since it is smaller than the sum of its proper divisors (1344343231064).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1222130210020 is a wasteful number, since it uses less digits than its factorization.
1222130210020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 61106510510 (or 61106510508 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 16.
Adding to 1222130210020 its reverse (200120312221), we get a palindrome (1422250522241).
The spelling of 1222130210020 in words is "one trillion, two hundred twenty-two billion, one hundred thirty million, two hundred ten thousand, twenty".
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