Base | Representation |
---|---|
bin | 11101000111110010000… |
… | …100101010100110111011 |
3 | 21002022111112120021000111 |
4 | 131013302010222212323 |
5 | 230242000100231021 |
6 | 4131203121245151 |
7 | 264404060462155 |
oct | 35076204524673 |
9 | 7068445507014 |
10 | 2001221102011 |
11 | 70179315a8aa |
12 | 283a24a937b7 |
13 | 116939536741 |
14 | 6cc06b13ad5 |
15 | 370ca2d58e1 |
hex | 1d1f212a9bb |
2001221102011 has 16 divisors (see below), whose sum is σ = 2052530726400. Its totient is φ = 1950545364768.
The previous prime is 2001221101991. The next prime is 2001221102077. The reversal of 2001221102011 is 1102011221002.
It is a cyclic number.
It is not a de Polignac number, because 2001221102011 - 29 = 2001221101499 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 2001221101982 and 2001221102000.
It is not an unprimeable number, because it can be changed into a prime (2001221102311) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4055460 + ... + 4522078.
It is an arithmetic number, because the mean of its divisors is an integer number (128283170400).
Almost surely, 22001221102011 is an apocalyptic number.
2001221102011 is a deficient number, since it is larger than the sum of its proper divisors (51309624389).
2001221102011 is a wasteful number, since it uses less digits than its factorization.
2001221102011 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 467298.
The product of its (nonzero) digits is 16, while the sum is 13.
Adding to 2001221102011 its reverse (1102011221002), we get a palindrome (3103232323013).
The spelling of 2001221102011 in words is "two trillion, one billion, two hundred twenty-one million, one hundred two thousand, eleven".
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