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12011021224205 = 531463991670089
BaseRepresentation
bin1010111011001000100010…
…1001110100100100001101
31120112020112201110022011112
42232302020221310210031
53033242032413133310
641313441553101405
72346524205613343
oct256621051644415
946466481408145
1012011021224205
113910933399763
12141b996857865
13691832b38923
142d749d615993
1515c67a7a3705
hexaec88a7490d

12011021224205 has 16 divisors (see below), whose sum is σ = 14878497792000. Its totient is φ = 9298649162880.

The previous prime is 12011021224201. The next prime is 12011021224211. The reversal of 12011021224205 is 50242212011021.

It is not a de Polignac number, because 12011021224205 - 22 = 12011021224201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011021224201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6356801 + ... + 8026889.

It is an arithmetic number, because the mean of its divisors is an integer number (929906112000).

Almost surely, 212011021224205 is an apocalyptic number.

It is an amenable number.

12011021224205 is a deficient number, since it is larger than the sum of its proper divisors (2867476567795).

12011021224205 is a wasteful number, since it uses less digits than its factorization.

12011021224205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716524.

The product of its (nonzero) digits is 640, while the sum is 23.

Adding to 12011021224205 its reverse (50242212011021), we get a palindrome (62253233235226).

The spelling of 12011021224205 in words is "twelve trillion, eleven billion, twenty-one million, two hundred twenty-four thousand, two hundred five".

Divisors: 1 5 31 155 46399 231995 1438369 1670089 7191845 8350445 51772759 258863795 77490459511 387452297555 2402204244841 12011021224205