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12110210220 = 22351033195389
BaseRepresentation
bin10110100011101001…
…10010010010101100
31011020222111102100110
423101310302102230
5144300203211340
65321403500020
7606050042223
oct132164622254
934228442313
1012110210220
1151549971a9
12241b827610
1311acc41784
1482c509cba
154ad290680
hex2d1d324ac

12110210220 has 48 divisors (see below), whose sum is σ = 33941587680. Its totient is φ = 3226246656.

The previous prime is 12110210213. The next prime is 12110210227. The reversal of 12110210220 is 2201201121.

It is an interprime number because it is at equal distance from previous prime (12110210213) and next prime (12110210227).

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 = 12110210196 and 12110210205.

It is not an unprimeable number, because it can be changed into a prime (12110210227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35715 + ... + 159674.

It is an arithmetic number, because the mean of its divisors is an integer number (707116410).

Almost surely, 212110210220 is an apocalyptic number.

12110210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12110210220 is an abundant number, since it is smaller than the sum of its proper divisors (21831377460).

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

12110210220 is a wasteful number, since it uses less digits than its factorization.

12110210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196434 (or 196432 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12110210220 its reverse (2201201121), we get a palindrome (14311411341).

Subtracting from 12110210220 its reverse (2201201121), we obtain a palindrome (9909009099).

The spelling of 12110210220 in words is "twelve billion, one hundred ten million, two hundred ten thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1033 2066 3099 4132 5165 6198 10330 12396 15495 20660 30990 61980 195389 390778 586167 781556 976945 1172334 1953890 2344668 2930835 3907780 5861670 11723340 201836837 403673674 605510511 807347348 1009184185 1211021022 2018368370 2422042044 3027552555 4036736740 6055105110 12110210220