Base | Representation |
---|---|
bin | 110111111110100100… |
… | …0111111100101001101 |
3 | 102111021201102010021112 |
4 | 1233331020333211031 |
5 | 3432143021011341 |
6 | 131120233141405 |
7 | 11453641402046 |
oct | 1577510774515 |
9 | 374251363245 |
10 | 120211110221 |
11 | 46a88046384 |
12 | 1b36a55a865 |
13 | b449b61667 |
14 | 5b653bb8cd |
15 | 31d87a6aeb |
hex | 1bfd23f94d |
120211110221 has 8 divisors (see below), whose sum is σ = 120561149184. Its totient is φ = 119861577360.
The previous prime is 120211110199. The next prime is 120211110223. The reversal of 120211110221 is 122011112021.
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 120211110221 - 214 = 120211093837 is a prime.
It is a super-2 number, since 2×1202111102212 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 120211110196 and 120211110205.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120211110223) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351836 + ... + 603498.
It is an arithmetic number, because the mean of its divisors is an integer number (15070143648).
Almost surely, 2120211110221 is an apocalyptic number.
It is an amenable number.
120211110221 is a deficient number, since it is larger than the sum of its proper divisors (350038963).
120211110221 is an equidigital number, since it uses as much as digits as its factorization.
120211110221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 253051.
The product of its (nonzero) digits is 16, while the sum is 14.
Adding to 120211110221 its reverse (122011112021), we get a palindrome (242222222242).
The spelling of 120211110221 in words is "one hundred twenty billion, two hundred eleven million, one hundred ten thousand, two hundred twenty-one".
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