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12201210000000 = 2732577107181
BaseRepresentation
bin1011000110001101000011…
…0010011011001010000000
31121012102110022012011020200
42301203100302123022000
53044401034230000000
641541054122405200
72366336233544220
oct261432062331200
947172408164220
1012201210000000
11398455aa619aa
121450814660800
136a67525c4a98
14302782674080
151625ac708500
hexb18d0c9b280

12201210000000 has 1536 divisors, whose sum is σ = 50905838430720. Its totient is φ = 2747520000000.

The previous prime is 12201209999987. The next prime is 12201210000029. The reversal of 12201210000000 is 1210221.

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

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

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 191 ways as a sum of consecutive naturals, for example, 67409999910 + ... + 67410000090.

It is an arithmetic number, because the mean of its divisors is an integer number (33141821895).

Almost surely, 212201210000000 is an apocalyptic number.

12201210000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12201210000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25452919215360).

12201210000000 is an abundant number, since it is smaller than the sum of its proper divisors (38704628430720).

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

12201210000000 is an frugal number, since it uses more digits than its factorization.

12201210000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 305 counting only the distinct ones).

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

Adding to 12201210000000 its reverse (1210221), we get a palindrome (12201211210221).

The spelling of 12201210000000 in words is "twelve trillion, two hundred one billion, two hundred ten million", and thus it is an aban number.