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22231211302230 = 2357312193390977
BaseRepresentation
bin1010000111000000110110…
…11100111101110101010110
32220201021122100011110202220
411003200123130331311112
510403214010043132410
6115140513311443210
74453103066123130
oct503403334756526
986637570143686
1022231211302230
1170a1227239377
1225b0683826506
13c53518180038
1456bdd406a050
15288441431070
hex14381b73dd56

22231211302230 has 64 divisors (see below), whose sum is σ = 60979007900160. Its totient is φ = 5081255460864.

The previous prime is 22231211302213. The next prime is 22231211302243. The reversal of 22231211302230 is 3220311213222.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22231211302230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4860502 + ... + 8251478.

It is an arithmetic number, because the mean of its divisors is an integer number (952796998440).

Almost surely, 222231211302230 is an apocalyptic number.

22231211302230 is an abundant number, since it is smaller than the sum of its proper divisors (38747796597930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22231211302230 is a wasteful number, since it uses less digits than its factorization.

22231211302230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3422213.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 22231211302230 its reverse (3220311213222), we get a palindrome (25451522515452).

The spelling of 22231211302230 in words is "twenty-two trillion, two hundred thirty-one billion, two hundred eleven million, three hundred two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 31219 62438 93657 156095 187314 218533 312190 437066 468285 655599 936570 1092665 1311198 2185330 3277995 3390977 6555990 6781954 10172931 16954885 20345862 23736839 33909770 47473678 50864655 71210517 101729310 118684195 142421034 237368390 356052585 712105170 105862910963 211725821926 317588732889 529314554815 635177465778 741040376741 1058629109630 1482080753482 1587943664445 2223121130223 3175887328890 3705201883705 4446242260446 7410403767410 11115605651115 22231211302230