Base | Representation |
---|---|
bin | 1001101001000001111110… |
… | …11001000111010010001110 |
3 | 2210001210112200110202012022 |
4 | 10310200333121013102032 |
5 | 10234324143130333402 |
6 | 113031340510210142 |
7 | 4315503043430555 |
oct | 464407731072216 |
9 | 83053480422168 |
10 | 21201022121102 |
11 | 683433730690a |
12 | 2464a974b3952 |
13 | baa32b582615 |
14 | 5341c6410d9c |
15 | 26b7496722a2 |
hex | 13483f64748e |
21201022121102 has 8 divisors (see below), whose sum is σ = 31801562006976. Its totient is φ = 10600501452112.
The previous prime is 21201022121101. The next prime is 21201022121113. The reversal of 21201022121102 is 20112122010212.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (21201022121101) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1625438 + ... + 6711489.
It is an arithmetic number, because the mean of its divisors is an integer number (3975195250872).
Almost surely, 221201022121102 is an apocalyptic number.
21201022121102 is a deficient number, since it is larger than the sum of its proper divisors (10600539885874).
21201022121102 is a wasteful number, since it uses less digits than its factorization.
21201022121102 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9608442.
The product of its (nonzero) digits is 64, while the sum is 17.
Adding to 21201022121102 its reverse (20112122010212), we get a palindrome (41313144131314).
The spelling of 21201022121102 in words is "twenty-one trillion, two hundred one billion, twenty-two million, one hundred twenty-one thousand, one hundred two".
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