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12301220012 = 2243145949019
BaseRepresentation
bin10110111010011010…
…11011100010101100
31011202021220201112012
423131031123202230
5200143103020022
65352345500352
7613556434124
oct133515334254
934667821465
1012301220012
115242799734
1224737a16b8
13121069ba13
14849a2bc84
154bee20de2
hex2dd35b8ac

12301220012 has 24 divisors (see below), whose sum is σ = 22043313600. Its totient is φ = 6003332496.

The previous prime is 12301220003. The next prime is 12301220017. The reversal of 12301220012 is 21002210321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12301220017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226439 + ... + 275457.

It is an arithmetic number, because the mean of its divisors is an integer number (918471400).

Almost surely, 212301220012 is an apocalyptic number.

It is an amenable number.

12301220012 is a deficient number, since it is larger than the sum of its proper divisors (9742093588).

12301220012 is a wasteful number, since it uses less digits than its factorization.

12301220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50525 (or 50523 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12301220012 its reverse (21002210321), we get a palindrome (33303430333).

The spelling of 12301220012 in words is "twelve billion, three hundred one million, two hundred twenty thousand, twelve".

Divisors: 1 2 4 43 86 172 1459 2918 5836 49019 62737 98038 125474 196076 250948 2107817 4215634 8431268 71518721 143037442 286074884 3075305003 6150610006 12301220012