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12110010220 = 2257117863643
BaseRepresentation
bin10110100011101000…
…00001011101101100
31011020222010021000001
423101310001131230
5144300130311340
65321355314044
7606045250150
oct132164013554
934228107001
1012110010220
11515486aa10
12241b74b924
1311acba1729
1482c497060
154ad25129a
hex2d1d0176c

12110010220 has 48 divisors (see below), whose sum is σ = 31706212608. Its totient is φ = 3774548160.

The previous prime is 12110010181. The next prime is 12110010239. The reversal of 12110010220 is 2201001121.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 12110010197 and 12110010206.

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, 3930282 + ... + 3933361.

It is an arithmetic number, because the mean of its divisors is an integer number (660546096).

Almost surely, 212110010220 is an apocalyptic number.

12110010220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12110010220 is an abundant number, since it is smaller than the sum of its proper divisors (19596202388).

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

12110010220 is a wasteful number, since it uses less digits than its factorization.

12110010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7863670 (or 7863668 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12110010220 its reverse (2201001121), we get a palindrome (14311011341).

Subtracting from 12110010220 its reverse (2201001121), we obtain a palindrome (9909009099).

The spelling of 12110010220 in words is "twelve billion, one hundred ten million, ten thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 140 154 220 308 385 770 1540 7863643 15727286 31454572 39318215 55045501 78636430 86500073 110091002 157272860 173000146 220182004 275227505 346000292 432500365 550455010 605500511 865000730 1100910020 1211001022 1730001460 2422002044 3027502555 6055005110 12110010220