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12121000001120 = 2551929137488657
BaseRepresentation
bin1011000001100010001111…
…1001100011111001100000
31120220202102022221000221102
42300120203321203321200
53042042302000013440
641440151024013532
72360466452032043
oct260304371437140
946822368830842
1012121000001120
11395353a56362a
12143916a4612a8
1369c00bb1479a
142dc933a72c5a
15160465aa7b15
hexb0623e63e60

12121000001120 has 96 divisors (see below), whose sum is σ = 31182427634400. Its totient is φ = 4434834087936.

The previous prime is 12121000001107. The next prime is 12121000001167. The reversal of 12121000001120 is 2110000012121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68656169 + ... + 68832488.

It is an arithmetic number, because the mean of its divisors is an integer number (324816954525).

Almost surely, 212121000001120 is an apocalyptic number.

12121000001120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12121000001120 is an abundant number, since it is smaller than the sum of its proper divisors (19061427633280).

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

12121000001120 is a wasteful number, since it uses less digits than its factorization.

12121000001120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137488720 (or 137488712 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12121000001120 its reverse (2110000012121), we get a palindrome (14231000013241).

The spelling of 12121000001120 in words is "twelve trillion, one hundred twenty-one billion, one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 19 20 29 32 38 40 58 76 80 95 116 145 152 160 190 232 290 304 380 464 551 580 608 760 928 1102 1160 1520 2204 2320 2755 3040 4408 4640 5510 8816 11020 17632 22040 44080 88160 137488657 274977314 549954628 687443285 1099909256 1374886570 2199818512 2612284483 2749773140 3987171053 4399637024 5224568966 5499546280 7974342106 10449137932 10999092560 13061422415 15948684212 19935855265 20898275864 21998185120 26122844830 31897368424 39871710530 41796551728 52245689660 63794736848 75756250007 79743421060 83593103456 104491379320 127589473696 151512500014 159486842120 208982758640 303025000028 318973684240 378781250035 417965517280 606050000056 637947368480 757562500070 1212100000112 1515125000140 2424200000224 3030250000280 6060500000560 12121000001120