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12022120205 = 542111175113
BaseRepresentation
bin10110011001001001…
…01111111100001101
31011000211201222120022
423030210233330031
5144110130321310
65304535431525
7603630223064
oct131444577415
934024658508
1012022120205
11510a19a937
1223b62255a5
13119790acc4
148209391db
154a568ea55
hex2cc92ff0d

12022120205 has 16 divisors (see below), whose sum is σ = 14476588464. Its totient is φ = 9584386560.

The previous prime is 12022120189. The next prime is 12022120237. The reversal of 12022120205 is 50202122021.

It can be written as a sum of positive squares in 8 ways, for example, as 9139933609 + 2882186596 = 95603^2 + 53686^2 .

It is not a de Polignac number, because 12022120205 - 24 = 12022120189 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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2348729 + ... + 2353841.

It is an arithmetic number, because the mean of its divisors is an integer number (904786779).

Almost surely, 212022120205 is an apocalyptic number.

It is an amenable number.

12022120205 is a deficient number, since it is larger than the sum of its proper divisors (2454468259).

12022120205 is a wasteful number, since it uses less digits than its factorization.

12022120205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6656.

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 12022120205 its reverse (50202122021), we get a palindrome (62224242226).

The spelling of 12022120205 in words is "twelve billion, twenty-two million, one hundred twenty thousand, two hundred five".

Divisors: 1 5 421 1117 2105 5113 5585 25565 470257 2152573 2351285 5711221 10762865 28556105 2404424041 12022120205