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12222102143 = 14741829123
BaseRepresentation
bin10110110000111111…
…00111101001111111
31011112210001010012202
423120133213221333
5200012324232033
65340442022115
7611606103566
oct133037475177
934483033182
1012222102143
115202070269
1224511a793b
1311ca18a004
1483d314bdd
154b7ee38e8
hex2d87e7a7f

12222102143 has 4 divisors (see below), whose sum is σ = 12222946008. Its totient is φ = 12221258280.

The previous prime is 12222102083. The next prime is 12222102149. The reversal of 12222102143 is 34120122221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34120122221 = 172007066013.

It is a cyclic number.

It is not a de Polignac number, because 12222102143 - 210 = 12222101119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222102149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399821 + ... + 429302.

It is an arithmetic number, because the mean of its divisors is an integer number (3055736502).

Almost surely, 212222102143 is an apocalyptic number.

12222102143 is a deficient number, since it is larger than the sum of its proper divisors (843865).

12222102143 is an equidigital number, since it uses as much as digits as its factorization.

12222102143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843864.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12222102143 its reverse (34120122221), we get a palindrome (46342224364).

The spelling of 12222102143 in words is "twelve billion, two hundred twenty-two million, one hundred two thousand, one hundred forty-three".

Divisors: 1 14741 829123 12222102143