Base | Representation |
---|---|
bin | 1001000110010111100011… |
… | …01010111001111001001001 |
3 | 2121211221100011020000211210 |
4 | 10203023301222321321021 |
5 | 10110321001112033001 |
6 | 110320250034443333 |
7 | 4133450520343365 |
oct | 443136152717111 |
9 | 77757304200753 |
10 | 20010012221001 |
11 | 6415220269950 |
12 | 22b20a8733549 |
13 | b21c2268c96a |
14 | 4d26bdc822a5 |
15 | 24a78dd59dd6 |
hex | 1232f1ab9e49 |
20010012221001 has 32 divisors (see below), whose sum is σ = 29831649232896. Its totient is φ = 11825029584000.
The previous prime is 20010012220973. The next prime is 20010012221057. The reversal of 20010012221001 is 10012221001002.
It is not a de Polignac number, because 20010012221001 - 213 = 20010012212809 is a prime.
It is not an unprimeable number, because it can be changed into a prime (20010012201001) 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 31 ways as a sum of consecutive naturals, for example, 1561261 + ... + 6515946.
It is an arithmetic number, because the mean of its divisors is an integer number (932239038528).
Almost surely, 220010012221001 is an apocalyptic number.
It is an amenable number.
20010012221001 is a deficient number, since it is larger than the sum of its proper divisors (9821637011895).
20010012221001 is a wasteful number, since it uses less digits than its factorization.
20010012221001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8079093.
The product of its (nonzero) digits is 16, while the sum is 12.
Adding to 20010012221001 its reverse (10012221001002), we get a palindrome (30022233222003).
The spelling of 20010012221001 in words is "twenty trillion, ten billion, twelve million, two hundred twenty-one thousand, one".
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