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12225312001 = 73175509379
BaseRepresentation
bin10110110001010111…
…10111010100000001
31011120000002012022101
423120223313110001
5200014134441001
65341034510401
7611645303020
oct133053672401
934500065271
1012225312001
115203962941
122452295401
1311caa42036
1483d90c8b7
154b8429a01
hex2d8af7501

12225312001 has 8 divisors (see below), whose sum is σ = 14015862720. Its totient is φ = 10445780688.

The previous prime is 12225311999. The next prime is 12225312031. The reversal of 12225312001 is 10021352221.

12225312001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12225312001 - 21 = 12225311999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12225312001.

It is not an unprimeable number, because it can be changed into a prime (12225312031) 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 7 ways as a sum of consecutive naturals, for example, 2752471 + ... + 2756908.

It is an arithmetic number, because the mean of its divisors is an integer number (1751982840).

Almost surely, 212225312001 is an apocalyptic number.

It is an amenable number.

12225312001 is a deficient number, since it is larger than the sum of its proper divisors (1790550719).

12225312001 is an equidigital number, since it uses as much as digits as its factorization.

12225312001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5509703.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 12225312001 its reverse (10021352221), we get a palindrome (22246664222).

The spelling of 12225312001 in words is "twelve billion, two hundred twenty-five million, three hundred twelve thousand, one".

Divisors: 1 7 317 2219 5509379 38565653 1746473143 12225312001