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12230302031220 = 22357132239982057
BaseRepresentation
bin1011000111111001011011…
…0011101101110101110100
31121022012112202222110121110
42301332112303231311310
53100340124304444340
642002305001515020
72401416166664610
oct261762663556564
947265482873543
1012230302031220
113995929720609
1214563934a2a70
136a940a833340
14303d4228a340
1516321177e680
hexb1f96cedd74

12230302031220 has 96 divisors (see below), whose sum is σ = 42147502403328. Its totient is φ = 2580459328512.

The previous prime is 12230302031173. The next prime is 12230302031251. The reversal of 12230302031220 is 2213020303221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 1119985569 + ... + 1119996488.

It is an arithmetic number, because the mean of its divisors is an integer number (439036483368).

Almost surely, 212230302031220 is an apocalyptic number.

12230302031220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12230302031220 is an abundant number, since it is smaller than the sum of its proper divisors (29917200372108).

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

12230302031220 is a wasteful number, since it uses less digits than its factorization.

12230302031220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2239982089 (or 2239982087 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12230302031220 its reverse (2213020303221), we get a palindrome (14443322334441).

The spelling of 12230302031220 in words is "twelve trillion, two hundred thirty billion, three hundred two million, thirty-one thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 13 14 15 20 21 26 28 30 35 39 42 52 60 65 70 78 84 91 105 130 140 156 182 195 210 260 273 364 390 420 455 546 780 910 1092 1365 1820 2730 5460 2239982057 4479964114 6719946171 8959928228 11199910285 13439892342 15679874399 22399820570 26879784684 29119766741 31359748798 33599730855 44799641140 47039623197 58239533482 62719497596 67199461710 78399371995 87359300223 94079246394 116479066964 134398923420 145598833705 156798743990 174718600446 188158492788 203838367187 235198115985 291197667410 313597487980 349437200892 407676734374 436796501115 470396231970 582395334820 611515101561 815353468748 873593002230 940792463940 1019191835935 1223030203122 1747186004460 2038383671870 2446060406244 3057575507805 4076767343740 6115151015610 12230302031220