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12223230223 = 19736195251
BaseRepresentation
bin10110110001000111…
…11011000100001111
31011112212011102122111
423120203323010033
5200013121331343
65340522124451
7611621512501
oct133043730417
934485142574
1012223230223
115202770866
122451650727
1311ca493609
1483d529d71
154b8167c9d
hex2d88fb10f

12223230223 has 4 divisors (see below), whose sum is σ = 12229427448. Its totient is φ = 12217033000.

The previous prime is 12223230209. The next prime is 12223230287. The reversal of 12223230223 is 32203232221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12223230223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12223230194 and 12223230203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223230293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3095653 + ... + 3099598.

It is an arithmetic number, because the mean of its divisors is an integer number (3057356862).

Almost surely, 212223230223 is an apocalyptic number.

12223230223 is a deficient number, since it is larger than the sum of its proper divisors (6197225).

12223230223 is an equidigital number, since it uses as much as digits as its factorization.

12223230223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6197224.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 12223230223 its reverse (32203232221), we get a palindrome (44426462444).

The spelling of 12223230223 in words is "twelve billion, two hundred twenty-three million, two hundred thirty thousand, two hundred twenty-three".

Divisors: 1 1973 6195251 12223230223