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131222333221210 = 257111911527778121
BaseRepresentation
bin11101110101100010010100…
…100011101110100101011010
3122012121201210000121120210101
4131311202110203232211122
5114144421314301034320
61143030412505010014
736432333513515560
oct3565422443564532
9565551700546711
10131222333221210
11388a2096164a30
1212873925a8390a
13582b29ca51b8a
1424592a2807a30
1510285d9c84c0a
hex7758948ee95a

131222333221210 has 128 divisors (see below), whose sum is σ = 310009780776960. Its totient is φ = 38744400038400.

The previous prime is 131222333221163. The next prime is 131222333221241. The reversal of 131222333221210 is 12122333222131.

It is a super-2 number, since 2×1312223332212102 (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 168250950 + ... + 169029070.

It is an arithmetic number, because the mean of its divisors is an integer number (2421951412320).

Almost surely, 2131222333221210 is an apocalyptic number.

131222333221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131222333221210 is an abundant number, since it is smaller than the sum of its proper divisors (178787447555750).

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

131222333221210 is a wasteful number, since it uses less digits than its factorization.

131222333221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789692.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 131222333221210 its reverse (12122333222131), we get a palindrome (143344666443341).

The spelling of 131222333221210 in words is "one hundred thirty-one trillion, two hundred twenty-two billion, three hundred thirty-three million, two hundred twenty-one thousand, two hundred ten".

Divisors: 1 2 5 7 10 11 14 19 22 35 38 55 70 77 95 110 133 154 190 209 266 385 418 665 770 1045 1330 1463 2090 2926 7315 11527 14630 23054 57635 80689 115270 126797 161378 219013 253594 403445 438026 633985 778121 806890 887579 1095065 1267970 1533091 1556242 1775158 2190130 2409143 3066182 3890605 4437895 4818286 5446847 7665455 7781210 8559331 8875790 10893694 12045715 14784299 15330910 16864001 17118662 24091430 27234235 29568598 33728002 42796655 54468470 59915317 73921495 84320005 85593310 103490093 119830634 147842990 162627289 168640010 206980186 299576585 325254578 517450465 599153170 813136445 1034900930 1138391023 1626272890 2276782046 5691955115 8969400767 11383910230 17938801534 44847003835 62785805369 89694007670 98663408437 125571610738 170418614573 197326816874 313929026845 340837229146 493317042185 627858053690 690643859059 852093072865 986634084370 1192930302011 1381287718118 1704186145730 1874604760303 2385860604022 3453219295295 3749209520606 5964651510055 6906438590590 9373023801515 11929303020110 13122233322121 18746047603030 26244466644242 65611166610605 131222333221210