Base | Representation |
---|---|
bin | 10011000010011100… |
… | …01001001100100111 |
3 | 222101022200020100022 |
4 | 21201032021030213 |
5 | 131413041012411 |
6 | 4410120105355 |
7 | 511200224534 |
oct | 114116111447 |
9 | 28338606308 |
10 | 10221032231 |
11 | 4375562883 |
12 | 1b9300525b |
13 | c6b729987 |
14 | 6cd65bd8b |
15 | 3ec4bdedb |
hex | 261389327 |
10221032231 has 2 divisors, whose sum is σ = 10221032232. Its totient is φ = 10221032230.
The previous prime is 10221032209. The next prime is 10221032233. The reversal of 10221032231 is 13223012201.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 10221032231 - 26 = 10221032167 is a prime.
It is a super-2 number, since 2×102210322312 (a number of 21 digits) contains 22 as substring.
It is a Sophie Germain prime.
Together with 10221032233, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (10221032233) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110516115 + 5110516116.
It is an arithmetic number, because the mean of its divisors is an integer number (5110516116).
Almost surely, 210221032231 is an apocalyptic number.
10221032231 is a deficient number, since it is larger than the sum of its proper divisors (1).
10221032231 is an equidigital number, since it uses as much as digits as its factorization.
10221032231 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 144, while the sum is 17.
Adding to 10221032231 its reverse (13223012201), we get a palindrome (23444044432).
The spelling of 10221032231 in words is "ten billion, two hundred twenty-one million, thirty-two thousand, two hundred thirty-one".
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