Base | Representation |
---|---|
bin | 10011000010100100… |
… | …10101010000101101 |
3 | 222101101202000111121 |
4 | 21201102111100231 |
5 | 131413331131341 |
6 | 4410155420541 |
7 | 511212446632 |
oct | 114122252055 |
9 | 28341660447 |
10 | 10222130221 |
11 | 4376142806 |
12 | 1b93454751 |
13 | c6ba22684 |
14 | 6cd866189 |
15 | 3ec6394d1 |
hex | 26149542d |
10222130221 has 8 divisors (see below), whose sum is σ = 10575747000. Its totient is φ = 9868588800.
The previous prime is 10222130183. The next prime is 10222130239. The reversal of 10222130221 is 12203122201.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 1350562500 + 8871567721 = 36750^2 + 94189^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-10222130221 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 10222130195 and 10222130204.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10222130021) 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, 495921 + ... + 516121.
It is an arithmetic number, because the mean of its divisors is an integer number (1321968375).
Almost surely, 210222130221 is an apocalyptic number.
It is an amenable number.
10222130221 is a deficient number, since it is larger than the sum of its proper divisors (353616779).
10222130221 is a wasteful number, since it uses less digits than its factorization.
10222130221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 37679.
The product of its (nonzero) digits is 96, while the sum is 16.
Adding to 10222130221 its reverse (12203122201), we get a palindrome (22425252422).
The spelling of 10222130221 in words is "ten billion, two hundred twenty-two million, one hundred thirty thousand, two hundred twenty-one".
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