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12222311223 = 35401175431
BaseRepresentation
bin10110110001000000…
…11010101100110111
31011112210102202000110
423120200122230313
5200012402424343
65340450314103
7611610634263
oct133040325467
934483382013
1012222311223
1152021a3361
122451288933
1311ca231225
1483d36b0a3
154b8035833
hex2d881ab37

12222311223 has 8 divisors (see below), whose sum is σ = 16296932736. Its totient is φ = 8147948600.

The previous prime is 12222311209. The next prime is 12222311243. The reversal of 12222311223 is 32211322221.

12222311223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12222311223 - 212 = 12222307127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12222311223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222311243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124318 + ... + 199748.

It is an arithmetic number, because the mean of its divisors is an integer number (2037116592).

Almost surely, 212222311223 is an apocalyptic number.

12222311223 is a deficient number, since it is larger than the sum of its proper divisors (4074621513).

12222311223 is an equidigital number, since it uses as much as digits as its factorization.

12222311223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129445.

The product of its digits is 576, while the sum is 21.

Adding to 12222311223 its reverse (32211322221), we get a palindrome (44433633444).

The spelling of 12222311223 in words is "twelve billion, two hundred twenty-two million, three hundred eleven thousand, two hundred twenty-three".

Divisors: 1 3 54011 75431 162033 226293 4074103741 12222311223