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12223212223 = 199547112291
BaseRepresentation
bin10110110001000111…
…10110101010111111
31011112212010111221211
423120203312222333
5200013120242343
65340521505251
7611621406145
oct133043665277
934485114854
1012223212223
115202759292
122451642227
1311ca488371
1483d523595
154b816279d
hex2d88f6abf

12223212223 has 8 divisors (see below), whose sum is σ = 12307203200. Its totient is φ = 12139447320.

The previous prime is 12223212217. The next prime is 12223212241. The reversal of 12223212223 is 32221232221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12223212223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12223212194 and 12223212203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12226212223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52708 + ... + 164998.

It is an arithmetic number, because the mean of its divisors is an integer number (1538400400).

Almost surely, 212223212223 is an apocalyptic number.

12223212223 is a deficient number, since it is larger than the sum of its proper divisors (83990977).

12223212223 is a wasteful number, since it uses less digits than its factorization.

12223212223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113037.

The product of its digits is 1152, while the sum is 22.

Adding to 12223212223 its reverse (32221232221), we get a palindrome (44444444444).

The spelling of 12223212223 in words is "twelve billion, two hundred twenty-three million, two hundred twelve thousand, two hundred twenty-three".

Divisors: 1 199 547 108853 112291 22345909 61423177 12223212223