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12201111201 = 312577323371
BaseRepresentation
bin10110101110011111…
…00010111010100001
31011111022112200001110
423113033202322201
5144441441024301
65334412053533
7611232506526
oct132717427241
934438480043
1012201111201
1151a1233484
1224461642a9
1311c5a1a836
1483a60d14d
154b62490d6
hex2d73e2ea1

12201111201 has 8 divisors (see below), whose sum is σ = 16269492064. Its totient is φ = 8133402240.

The previous prime is 12201111199. The next prime is 12201111203. The reversal of 12201111201 is 10211110221.

It is an interprime number because it is at equal distance from previous prime (12201111199) and next prime (12201111203).

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

It is not a de Polignac number, because 12201111201 - 21 = 12201111199 is a prime.

It is a super-2 number, since 2×122011112012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12201111203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123955 + ... + 199416.

It is an arithmetic number, because the mean of its divisors is an integer number (2033686508).

Almost surely, 212201111201 is an apocalyptic number.

It is an amenable number.

12201111201 is a deficient number, since it is larger than the sum of its proper divisors (4068380863).

12201111201 is a wasteful number, since it uses less digits than its factorization.

12201111201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335951.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12201111201 its reverse (10211110221), we get a palindrome (22412221422).

The spelling of 12201111201 in words is "twelve billion, two hundred one million, one hundred eleven thousand, two hundred one".

Divisors: 1 3 12577 37731 323371 970113 4067037067 12201111201