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12223201123 = 74737152587
BaseRepresentation
bin10110110001000111…
…10011111101100011
31011112212002221201201
423120203303331203
5200013114413443
65340521342031
7611621331610
oct133043637543
934485087651
1012223201123
115202750a11
122451637917
1311ca4832b3
1483d51d507
154b815e34d
hex2d88f3f63

12223201123 has 8 divisors (see below), whose sum is σ = 14266593792. Its totient is φ = 10254113736.

The previous prime is 12223201091. The next prime is 12223201153. The reversal of 12223201123 is 32110232221.

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 12223201123 - 25 = 12223201091 is a prime.

It is a super-3 number, since 3×122232011233 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12223201123.

It is not an unprimeable number, because it can be changed into a prime (12223201153) 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, 18575965 + ... + 18576622.

It is an arithmetic number, because the mean of its divisors is an integer number (1783324224).

Almost surely, 212223201123 is an apocalyptic number.

12223201123 is a deficient number, since it is larger than the sum of its proper divisors (2043392669).

12223201123 is an equidigital number, since it uses as much as digits as its factorization.

12223201123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37152641.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12223201123 its reverse (32110232221), we get a palindrome (44333433344).

The spelling of 12223201123 in words is "twelve billion, two hundred twenty-three million, two hundred one thousand, one hundred twenty-three".

Divisors: 1 7 47 329 37152587 260068109 1746171589 12223201123