Base | Representation |
---|---|
bin | 110111111110110101… |
… | …0111010011110101101 |
3 | 102111022100010212210212 |
4 | 1233331222322132231 |
5 | 3432202310032341 |
6 | 131121151512205 |
7 | 11454110105204 |
oct | 1577552723655 |
9 | 374270125725 |
10 | 120220002221 |
11 | 46a9206a040 |
12 | 1b371528665 |
13 | b44b955ab7 |
14 | 5b6665423b |
15 | 31d94615eb |
hex | 1bfdaba7ad |
120220002221 has 8 divisors (see below), whose sum is σ = 131154282624. Its totient is φ = 109286586720.
The previous prime is 120220002143. The next prime is 120220002233. The reversal of 120220002221 is 122200022021.
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 120220002221 - 210 = 120220001197 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 120220002196 and 120220002205.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120220002281) 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, 93740 + ... + 499226.
It is an arithmetic number, because the mean of its divisors is an integer number (16394285328).
Almost surely, 2120220002221 is an apocalyptic number.
120220002221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
120220002221 is a deficient number, since it is larger than the sum of its proper divisors (10934280403).
120220002221 is a wasteful number, since it uses less digits than its factorization.
120220002221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 432451.
The product of its (nonzero) digits is 64, while the sum is 14.
Adding to 120220002221 its reverse (122200022021), we get a palindrome (242420024242).
The spelling of 120220002221 in words is "one hundred twenty billion, two hundred twenty million, two thousand, two hundred twenty-one".
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