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222243310231 = 1280917350559
BaseRepresentation
bin1100111011111010111…
…0111100101010010111
3210020122111222220212021
43032332232330222113
512120123241411411
6250032553234011
722025252652655
oct3167656745227
9706574886767
10222243310231
1186286611418
12370a4a02907
1317c5a6b08c7
14aa842b9dd5
155bab114a71
hex33bebbca97

222243310231 has 4 divisors (see below), whose sum is σ = 222260673600. Its totient is φ = 222225946864.

The previous prime is 222243310229. The next prime is 222243310241. The reversal of 222243310231 is 132013342222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222243310231 - 21 = 222243310229 is a prime.

It is a super-2 number, since 2×2222433102312 (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 = 222243310196 and 222243310205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222243310241) 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, 8662471 + ... + 8688088.

It is an arithmetic number, because the mean of its divisors is an integer number (55565168400).

Almost surely, 2222243310231 is an apocalyptic number.

222243310231 is a deficient number, since it is larger than the sum of its proper divisors (17363369).

222243310231 is a wasteful number, since it uses less digits than its factorization.

222243310231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17363368.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 222243310231 its reverse (132013342222), we get a palindrome (354256652453).

The spelling of 222243310231 in words is "two hundred twenty-two billion, two hundred forty-three million, three hundred ten thousand, two hundred thirty-one".

Divisors: 1 12809 17350559 222243310231