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12020010000012 = 2233759797265891
BaseRepresentation
bin1010111011101010000001…
…1011010001111010001100
31120120002202011102102111000
42232322200123101322030
53033413440030000022
641321525533500300
72350263024135660
oct256724033217214
946502664372430
1012020010000012
113914726313aa3
121421685041690
13692636189091
142d7ab33488a0
1515ca049b46ac
hexaeea06d1e8c

12020010000012 has 96 divisors (see below), whose sum is σ = 35615573987840. Its totient is φ = 3434218223040.

The previous prime is 12020009999989. The next prime is 12020010000013. The reversal of 12020010000012 is 21000001002021.

12020010000012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12020009999949 and 12020010000003.

It is not an unprimeable number, because it can be changed into a prime (12020010000013) 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, 45073587 + ... + 45339477.

Almost surely, 212020010000012 is an apocalyptic number.

12020010000012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12020010000012 is an abundant number, since it is smaller than the sum of its proper divisors (23595563987828).

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

12020010000012 is a wasteful number, since it uses less digits than its factorization.

12020010000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325708 (or 325700 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 12020010000012 its reverse (21000001002021), we get a palindrome (33020011002033).

The spelling of 12020010000012 in words is "twelve trillion, twenty billion, ten million, twelve", and thus it is an aban number and an uban number.

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 84 108 126 189 252 378 756 59797 119594 179391 239188 265891 358782 418579 531782 538173 717564 797673 837158 1063564 1076346 1255737 1595346 1614519 1674316 1861237 2152692 2393019 2511474 3190692 3229038 3722474 3767211 4786038 5022948 5583711 6458076 7179057 7444948 7534422 9572076 11167422 11301633 14358114 15068844 16751133 22334844 22603266 28716228 33502266 45206532 50253399 67004532 100506798 201013596 15899484127 31798968254 47698452381 63597936508 95396904762 111296388889 143095357143 190793809524 222592777778 286190714286 333889166667 429286071429 445185555556 572381428572 667778333334 858572142858 1001667500001 1335556666668 1717144285716 2003335000002 3005002500003 4006670000004 6010005000006 12020010000012