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12000102001220 = 2252807712136991
BaseRepresentation
bin1010111010011111110111…
…0100010010101001000100
31120111012100202000022011102
42232213331310102221010
53033102202103014340
641304434252155232
72345656500011114
oct256477564225104
946435322008142
1012000102001220
11390723a812933
121419849a68b18
136907b2884238
142d6b45371044
1515c23bd6d215
hexae9fdd12a44

12000102001220 has 24 divisors (see below), whose sum is σ = 25200315748608. Its totient is φ = 4800021458400.

The previous prime is 12000102001211. The next prime is 12000102001231. The reversal of 12000102001220 is 2210020100021.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4546925 + ... + 6683915.

It is an arithmetic number, because the mean of its divisors is an integer number (1050013156192).

Almost surely, 212000102001220 is an apocalyptic number.

12000102001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12000102001220 is an abundant number, since it is smaller than the sum of its proper divisors (13200213747388).

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

12000102001220 is a wasteful number, since it uses less digits than its factorization.

12000102001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2417771 (or 2417769 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12000102001220 its reverse (2210020100021), we get a palindrome (14210122101241).

The spelling of 12000102001220 in words is "twelve trillion, one hundred two million, one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 280771 561542 1123084 1403855 2136991 2807710 4273982 5615420 8547964 10684955 21369910 42739820 600005100061 1200010200122 2400020400244 3000025500305 6000051000610 12000102001220