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12010212121201 = 71728966705983
BaseRepresentation
bin1010111011000101100001…
…1011010101101001110001
31120112011110022222121111121
42232301120123111221301
53033233403300334301
641313225411142241
72346465152424430
oct256613033255161
946464408877447
1012010212121201
113910558700698
12141b7ab8a4981
13691734319558
142d7423d9b117
1515c62e72e3a1
hexaec586d5a71

12010212121201 has 24 divisors (see below), whose sum is σ = 14744690703360. Its totient is φ = 9580046310912.

The previous prime is 12010212121181. The next prime is 12010212121277. The reversal of 12010212121201 is 10212121201021.

It is not a de Polignac number, because 12010212121201 - 211 = 12010212119153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12010212122201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33172945 + ... + 33533038.

It is an arithmetic number, because the mean of its divisors is an integer number (614362112640).

Almost surely, 212010212121201 is an apocalyptic number.

It is an amenable number.

12010212121201 is a deficient number, since it is larger than the sum of its proper divisors (2734478582159).

12010212121201 is an equidigital number, since it uses as much as digits as its factorization.

12010212121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66706113 (or 66706096 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12010212121201 its reverse (10212121201021), we get a palindrome (22222333322222).

The spelling of 12010212121201 in words is "twelve trillion, ten billion, two hundred twelve million, one hundred twenty-one thousand, two hundred one".

Divisors: 1 7 17 89 119 289 623 1513 2023 10591 25721 180047 66705983 466941881 1134001711 5936832487 7938011977 19278029087 41557827409 100926152279 134946203609 706483065953 1715744588743 12010212121201