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12110101010220 = 22351912978190359
BaseRepresentation
bin1011000000111001101001…
…0001001101011100101100
31120212201021202112221010210
42300032122101031130230
53041402441324311340
641431145324502420
72356632410113263
oct260163221153454
946781252487123
1012110101010220
113949957346434
1214370283aaa10
1369ac92ac5045
142dc1bc3775da
15160028d1c180
hexb039a44d72c

12110101010220 has 96 divisors (see below), whose sum is σ = 35720453260800. Its totient is φ = 3057034742784.

The previous prime is 12110101010213. The next prime is 12110101010221. The reversal of 12110101010220 is 2201010101121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12110101010196 and 12110101010205.

It is not an unprimeable number, because it can be changed into a prime (12110101010221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2616600 + ... + 5573759.

It is an arithmetic number, because the mean of its divisors is an integer number (372088054800).

Almost surely, 212110101010220 is an apocalyptic number.

12110101010220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12110101010220 is an abundant number, since it is smaller than the sum of its proper divisors (23610352250580).

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

12110101010220 is a wasteful number, since it uses less digits than its factorization.

12110101010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8191687 (or 8191685 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12110101010220 its reverse (2201010101121), we get a palindrome (14311111111341).

Subtracting from 12110101010220 its reverse (2201010101121), we obtain a palindrome (9909090909099).

The spelling of 12110101010220 in words is "twelve trillion, one hundred ten billion, one hundred one million, ten thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 19 20 30 38 57 60 76 95 114 190 228 285 380 570 1140 1297 2594 3891 5188 6485 7782 12970 15564 19455 24643 25940 38910 49286 73929 77820 98572 123215 147858 246430 295716 369645 492860 739290 1478580 8190359 16380718 24571077 32761436 40951795 49142154 81903590 98284308 122855385 155616821 163807180 245710770 311233642 466850463 491421540 622467284 778084105 933700926 1556168210 1867401852 2334252315 3112336420 4668504630 9337009260 10622895623 21245791246 31868686869 42491582492 53114478115 63737373738 106228956230 127474747476 159343434345 201835016837 212457912460 318686868690 403670033674 605505050511 637373737380 807340067348 1009175084185 1211010101022 2018350168370 2422020202044 3027525252555 4036700336740 6055050505110 12110101010220