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12210118471 = 17718242263
BaseRepresentation
bin10110101111100011…
…11001111101000111
31011111221111021201001
423113301321331013
5200001242242341
65335333114131
7611402203015
oct132761717507
934457437631
1012210118471
1151a6325801
122449188947
1311c7852595
1483b8b58b5
154b6e27d31
hex2d7c79f47

12210118471 has 4 divisors (see below), whose sum is σ = 12928360752. Its totient is φ = 11491876192.

The previous prime is 12210118469. The next prime is 12210118493. The reversal of 12210118471 is 17481101221.

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

It is a cyclic number.

It is not a de Polignac number, because 12210118471 - 21 = 12210118469 is a prime.

It is a super-3 number, since 3×122101184713 (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210118411) 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, 359121115 + ... + 359121148.

It is an arithmetic number, because the mean of its divisors is an integer number (3232090188).

Almost surely, 212210118471 is an apocalyptic number.

12210118471 is a deficient number, since it is larger than the sum of its proper divisors (718242281).

12210118471 is an equidigital number, since it uses as much as digits as its factorization.

12210118471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718242280.

The product of its (nonzero) digits is 896, while the sum is 28.

Adding to 12210118471 its reverse (17481101221), we get a palindrome (29691219692).

The spelling of 12210118471 in words is "twelve billion, two hundred ten million, one hundred eighteen thousand, four hundred seventy-one".

Divisors: 1 17 718242263 12210118471