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12000112212 = 22311251362191
BaseRepresentation
bin10110010110100001…
…10010111001010100
31010222022022212021110
423023100302321110
5144034012042322
65302432015020
7603242161614
oct131320627124
933868285243
1012000112212
1150a8828a10
1223aa991470
1311931a391a
1481ba4aa44
154a3793c0c
hex2cb432e54

12000112212 has 48 divisors (see below), whose sum is σ = 30667521024. Its totient is φ = 3621900000.

The previous prime is 12000112199. The next prime is 12000112213. The reversal of 12000112212 is 21221100021.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000112213) 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, 147964 + ... + 214227.

It is an arithmetic number, because the mean of its divisors is an integer number (638906688).

Almost surely, 212000112212 is an apocalyptic number.

12000112212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12000112212 is an abundant number, since it is smaller than the sum of its proper divisors (18667408812).

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

12000112212 is a wasteful number, since it uses less digits than its factorization.

12000112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362460 (or 362458 counting only the distinct ones).

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

Adding to 12000112212 its reverse (21221100021), we get a palindrome (33221212233).

The spelling of 12000112212 in words is "twelve billion, one hundred twelve thousand, two hundred twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 251 502 753 1004 1506 2761 3012 5522 8283 11044 16566 33132 362191 724382 1086573 1448764 2173146 3984101 4346292 7968202 11952303 15936404 23904606 47809212 90909941 181819882 272729823 363639764 545459646 1000009351 1090919292 2000018702 3000028053 4000037404 6000056106 12000112212