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12223302131223 = 3619432477277
BaseRepresentation
bin1011000111011111010110…
…0101001101111000010111
31121021112110221102201000000
42301313311211031320113
53100231310321144343
641555150225422343
72401050551553111
oct261676545157027
947245427381000
1012223302131223
113992967435097
121454b5b19a9b3
136a8863563a91
1430387a7583b1
15162e51e84ed3
hexb1df594de17

12223302131223 has 84 divisors (see below), whose sum is σ = 19750231372440. Its totient is φ = 7540430069088.

The previous prime is 12223302131203. The next prime is 12223302131251. The reversal of 12223302131223 is 32213120332221.

12223302131223 is a `hidden beast` number, since 1 + 2 + 2 + 2 + 3 + 302 + 131 + 223 = 666.

It is not a de Polignac number, because 12223302131223 - 228 = 12223033695767 is a prime.

It is a super-2 number, since 2×122233021312232 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223302131203) by changing a digit.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 25371861 + ... + 25849137.

Almost surely, 212223302131223 is an apocalyptic number.

12223302131223 is a deficient number, since it is larger than the sum of its proper divisors (7526929241217).

12223302131223 is an frugal number, since it uses more digits than its factorization.

12223302131223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477400 (or 477342 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 12223302131223 its reverse (32213120332221), we get a palindrome (44436422463444).

The spelling of 12223302131223 in words is "twelve trillion, two hundred twenty-three billion, three hundred two million, one hundred thirty-one thousand, two hundred twenty-three".

Divisors: 1 3 9 19 27 43 57 81 129 171 243 387 513 729 817 1161 1539 1849 2451 3483 4617 5547 7353 10449 13851 16641 22059 31347 35131 49923 66177 105393 149769 198531 316179 449307 477277 595593 948537 1347921 1431831 2845611 4295493 8536833 9068263 12886479 20522911 25610499 27204789 38659437 61568733 81614367 115978311 184706199 244843101 347934933 389935309 554118597 734529303 882485173 1169805927 1662355791 2203587909 2647455519 3509417781 4987067373 6610763727 7942366557 10528253343 14961202119 16767218287 23827099671 31584760029 50301654861 71481299013 94754280087 150904964583 214443897039 284262840261 452714893749 643331691117 1358144681247 4074434043741 12223302131223