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12011201210211 = 375924140225189
BaseRepresentation
bin1010111011001001001101…
…1000011010011101100011
31120112021000021010112112220
42232302103120122131203
53033242420002211321
641313511502522123
72346531522513030
oct256622330323543
946467007115486
1012011201210211
113910a15a51925
12141ba26b96343
13691861206318
142d74b94a8387
1515c68b4a79c6
hexaec9361a763

12011201210211 has 32 divisors (see below), whose sum is σ = 18690232281600. Its totient is φ = 6719215403520.

The previous prime is 12011201210189. The next prime is 12011201210251. The reversal of 12011201210211 is 11201210211021.

It is a happy number.

It is not a de Polignac number, because 12011201210211 - 210 = 12011201209187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12011201210251) 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 31 ways as a sum of consecutive naturals, for example, 19813996 + ... + 20411193.

It is an arithmetic number, because the mean of its divisors is an integer number (584069758800).

Almost surely, 212011201210211 is an apocalyptic number.

12011201210211 is a deficient number, since it is larger than the sum of its proper divisors (6679031071389).

12011201210211 is a wasteful number, since it uses less digits than its factorization.

12011201210211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40225499.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12011201210211 its reverse (11201210211021), we get a palindrome (23212411421232).

The spelling of 12011201210211 in words is "twelve trillion, eleven billion, two hundred one million, two hundred ten thousand, two hundred eleven".

Divisors: 1 3 7 21 59 177 241 413 723 1239 1687 5061 14219 42657 99533 298599 40225189 120675567 281576323 844728969 2373286151 7119858453 9694270549 16613003057 29082811647 49839009171 67859893843 203579681529 571961962391 1715885887173 4003733736737 12011201210211