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12222101205 = 335179505777
BaseRepresentation
bin10110110000111111…
…00111011011010101
31011112210001001221000
423120133213123111
5200012324214310
65340442013513
7611606101056
oct133037473325
934483031830
1012222101205
11520206a596
1224511a7299
1311ca189762
1483d31472d
154b7ee34c0
hex2d87e76d5

12222101205 has 32 divisors (see below), whose sum is σ = 21849609600. Its totient is φ = 6482025216.

The previous prime is 12222101197. The next prime is 12222101219. The reversal of 12222101205 is 50210122221.

It is not a de Polignac number, because 12222101205 - 23 = 12222101197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 228724 + ... + 277053.

It is an arithmetic number, because the mean of its divisors is an integer number (682800300).

Almost surely, 212222101205 is an apocalyptic number.

12222101205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12222101205 is a deficient number, since it is larger than the sum of its proper divisors (9627508395).

12222101205 is a wasteful number, since it uses less digits than its factorization.

12222101205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505970 (or 505964 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 12222101205 its reverse (50210122221), we get a palindrome (62432223426).

The spelling of 12222101205 in words is "twelve billion, two hundred twenty-two million, one hundred one thousand, two hundred five".

Divisors: 1 3 5 9 15 27 45 135 179 537 895 1611 2685 4833 8055 24165 505777 1517331 2528885 4551993 7586655 13655979 22759965 68279895 90534083 271602249 452670415 814806747 1358011245 2444420241 4074033735 12222101205