Base | Representation |
---|---|
bin | 101111100110011100… |
… | …1111111001111010111 |
3 | 100202212000201200202011 |
4 | 1133030321333033113 |
5 | 3133322313013421 |
6 | 114543220125051 |
7 | 10246104446566 |
oct | 1371471771727 |
9 | 322760650664 |
10 | 102222001111 |
11 | 3a39672245a |
12 | 17989b36787 |
13 | 9840c752b9 |
14 | 4d3a1c7bdd |
15 | 29d43504e1 |
hex | 17cce7f3d7 |
102222001111 has 12 divisors (see below), whose sum is σ = 103489171032. Its totient is φ = 100969867008.
The previous prime is 102222001109. The next prime is 102222001157. The reversal of 102222001111 is 111100222201.
It is not a de Polignac number, because 102222001111 - 21 = 102222001109 is a prime.
It is a super-2 number, since 2×1022220011112 (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 = 102222001091 and 102222001100.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102222004111) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4910521 + ... + 4931293.
It is an arithmetic number, because the mean of its divisors is an integer number (8624097586).
Almost surely, 2102222001111 is an apocalyptic number.
102222001111 is a deficient number, since it is larger than the sum of its proper divisors (1267169921).
102222001111 is an frugal number, since it uses more digits than its factorization.
102222001111 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21490 (or 21393 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 13.
Adding to 102222001111 its reverse (111100222201), we get a palindrome (213322223312).
The spelling of 102222001111 in words is "one hundred two billion, two hundred twenty-two million, one thousand, one hundred eleven".
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