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12214403221 = 79613252223
BaseRepresentation
bin10110110000000100…
…10000000010010101
31011112020112222021111
423120002100002111
5200003341400341
65340005015021
7611453500006
oct133002200225
934466488244
1012214403221
1151a8791a19
12244a6b4471
1311c86c2937
1483c2ad1ad
154b74c2681
hex2d8090095

12214403221 has 8 divisors (see below), whose sum is σ = 12389242880. Its totient is φ = 12040069392.

The previous prime is 12214403209. The next prime is 12214403231. The reversal of 12214403221 is 12230441221.

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

It is a cyclic number.

It is not a de Polignac number, because 12214403221 - 213 = 12214395029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12214403192 and 12214403201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12214403231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77685 + ... + 174538.

It is an arithmetic number, because the mean of its divisors is an integer number (1548655360).

Almost surely, 212214403221 is an apocalyptic number.

It is an amenable number.

12214403221 is a deficient number, since it is larger than the sum of its proper divisors (174839659).

12214403221 is an equidigital number, since it uses as much as digits as its factorization.

12214403221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252915.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 12214403221 its reverse (12230441221), we get a palindrome (24444844442).

The spelling of 12214403221 in words is "twelve billion, two hundred fourteen million, four hundred three thousand, two hundred twenty-one".

Divisors: 1 79 613 48427 252223 19925617 154612699 12214403221