Base | Representation |
---|---|
bin | 1011000110001001010010… |
… | …0110010110010000000100 |
3 | 1121012022211221002001201212 |
4 | 2301202110212112100010 |
5 | 3044342002222414340 |
6 | 41540410011110552 |
7 | 2366302222442363 |
oct | 261422446262004 |
9 | 47168757061655 |
10 | 12200200201220 |
11 | 3984091a56159 |
12 | 1450592442458 |
13 | 6a6621336805 |
14 | 3026c84d57da |
15 | 16254dc3da65 |
hex | b1894996404 |
12200200201220 has 48 divisors (see below), whose sum is σ = 25751460818160. Its totient is φ = 4855121908224.
The previous prime is 12200200201219. The next prime is 12200200201261. The reversal of 12200200201220 is 2210200200221.
It can be written as a sum of positive squares in 8 ways, for example, as 9264832516 + 12190935368704 = 96254^2 + 3491552^2 .
It is a junction number, because it is equal to n+sod(n) for n = 12200200201195 and 12200200201204.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152315822 + ... + 152395898.
It is an arithmetic number, because the mean of its divisors is an integer number (536488767045).
Almost surely, 212200200201220 is an apocalyptic number.
12200200201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12200200201220 is an abundant number, since it is smaller than the sum of its proper divisors (13551260616940).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12200200201220 is a wasteful number, since it uses less digits than its factorization.
12200200201220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 118952 (or 118950 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 14.
Adding to 12200200201220 its reverse (2210200200221), we get a palindrome (14410400401441).
Subtracting from 12200200201220 its reverse (2210200200221), we obtain a palindrome (9990000000999).
The spelling of 12200200201220 in words is "twelve trillion, two hundred billion, two hundred million, two hundred one thousand, two hundred twenty".
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