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12224115215 = 5131924911061
BaseRepresentation
bin10110110001001110…
…10011001000001111
31011112220211101121222
423120213103020033
5200013333141330
65340553113555
7611632156604
oct133047231017
934486741558
1012224115215
115203215764
1224519b88bb
1311ca713390
1483d6ba6ab
154b82900e5
hex2d89d320f

12224115215 has 48 divisors (see below), whose sum is σ = 16722218016. Its totient is φ = 8526470400.

The previous prime is 12224115193. The next prime is 12224115223. The reversal of 12224115215 is 51251142221.

It is a happy number.

12224115215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12224115215 - 216 = 12224049679 is a prime.

It is a Duffinian number.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 11520785 + ... + 11521845.

It is an arithmetic number, because the mean of its divisors is an integer number (348379542).

Almost surely, 212224115215 is an apocalyptic number.

12224115215 is a deficient number, since it is larger than the sum of its proper divisors (4498102801).

12224115215 is a wasteful number, since it uses less digits than its factorization.

12224115215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608 (or 1589 counting only the distinct ones).

The product of its digits is 1600, while the sum is 26.

Adding to 12224115215 its reverse (51251142221), we get a palindrome (63475257436).

The spelling of 12224115215 in words is "twelve billion, two hundred twenty-four million, one hundred fifteen thousand, two hundred fifteen".

Divisors: 1 5 13 19 65 95 247 361 491 1061 1235 1805 2455 4693 5305 6383 9329 13793 20159 23465 31915 46645 68965 100795 121277 177251 262067 383021 520951 606385 886255 1310335 1915105 2304263 2604755 4979273 6772363 9898069 11521315 24896365 33861815 49490345 128674897 188063311 643374485 940316555 2444823043 12224115215