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12122020120012 = 22111923630435829
BaseRepresentation
bin1011000001100110000010…
…1101000000010111001100
31120220212001102110102222121
42300121200231000113030
53042101344122320022
641440440144422324
72360533646635435
oct260314055002714
946825042412877
1012122020120012
113953a13378aa0
1214393b40179a4
1369c14227722a
142dc9cd33a48c
151604c54102c7
hexb0660b405cc

12122020120012 has 48 divisors (see below), whose sum is σ = 25419172665600. Its totient is φ = 4993051757760.

The previous prime is 12122020119959. The next prime is 12122020120019. The reversal of 12122020120012 is 21002102022121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12122020120019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315198687 + ... + 315237142.

It is an arithmetic number, because the mean of its divisors is an integer number (529566097200).

Almost surely, 212122020120012 is an apocalyptic number.

It is an amenable number.

12122020120012 is an abundant number, since it is smaller than the sum of its proper divisors (13297152545588).

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

12122020120012 is a wasteful number, since it uses less digits than its factorization.

12122020120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630435886 (or 630435884 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12122020120012 its reverse (21002102022121), we get a palindrome (33124122142133).

The spelling of 12122020120012 in words is "twelve trillion, one hundred twenty-two billion, twenty million, one hundred twenty thousand, twelve".

Divisors: 1 2 4 11 19 22 23 38 44 46 76 92 209 253 418 437 506 836 874 1012 1748 4807 9614 19228 630435829 1260871658 2521743316 6934794119 11978280751 13869588238 14500024067 23956561502 27739176476 29000048134 47913123004 58000096268 131761088261 159500264737 263522176522 275500457273 319000529474 527044353044 551000914546 638001058948 1102001829092 3030505030003 6061010060006 12122020120012