Base | Representation |
---|---|
bin | 110111111110110101… |
… | …1010010101001100101 |
3 | 102111022100022220121112 |
4 | 1233331223102221211 |
5 | 3432202321214341 |
6 | 131121153554405 |
7 | 11454110666633 |
oct | 1577553225145 |
9 | 374270286545 |
10 | 120220101221 |
11 | 46a92127460 |
12 | 1b371575a05 |
13 | b44b98bb8c |
14 | 5b6667c353 |
15 | 31d9480aeb |
hex | 1bfdad2a65 |
120220101221 has 8 divisors (see below), whose sum is σ = 131570906688. Its totient is φ = 108939580000.
The previous prime is 120220101217. The next prime is 120220101259. The reversal of 120220101221 is 122101022021.
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 120220101221 - 22 = 120220101217 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 120220101196 and 120220101205.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120220001221) 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, 17567480 + ... + 17574321.
It is an arithmetic number, because the mean of its divisors is an integer number (16446363336).
Almost surely, 2120220101221 is an apocalyptic number.
120220101221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
120220101221 is a deficient number, since it is larger than the sum of its proper divisors (11350805467).
120220101221 is a wasteful number, since it uses less digits than its factorization.
120220101221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 35142123.
The product of its (nonzero) digits is 32, while the sum is 14.
Adding to 120220101221 its reverse (122101022021), we get a palindrome (242321123242).
The spelling of 120220101221 in words is "one hundred twenty billion, two hundred twenty million, one hundred one thousand, two hundred twenty-one".
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