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12000131244222 = 2311243937651723
BaseRepresentation
bin1010111010011111111110…
…0011110110000010111110
31120111012102210001000000120
42232213333203312002332
53033102232044303342
641304441215035410
72345660303404512
oct256477743660276
946435383030016
1012000131244222
113907255276600
12141985780bb66
136907b89527a4
142d6b491c4142
1515c23e6e7aec
hexae9ff8f60be

12000131244222 has 48 divisors (see below), whose sum is σ = 26440546661760. Its totient is φ = 3628119931920.

The previous prime is 12000131244217. The next prime is 12000131244223. The reversal of 12000131244222 is 22244213100021.

It is a junction number, because it is equal to n+sod(n) for n = 12000131244192 and 12000131244201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000131244223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18507148 + ... + 19144575.

It is an arithmetic number, because the mean of its divisors is an integer number (550844722120).

Almost surely, 212000131244222 is an apocalyptic number.

12000131244222 is an abundant number, since it is smaller than the sum of its proper divisors (14440415417538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12000131244222 is a wasteful number, since it uses less digits than its factorization.

12000131244222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37652189 (or 37652178 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 12000131244222 its reverse (22244213100021), we get a palindrome (34244344344243).

The spelling of 12000131244222 in words is "twelve trillion, one hundred thirty-one million, two hundred forty-four thousand, two hundred twenty-two".

Divisors: 1 2 3 6 11 22 33 66 121 242 363 439 726 878 1317 2634 4829 9658 14487 28974 53119 106238 159357 318714 37651723 75303446 112955169 225910338 414168953 828337906 1242506859 2485013718 4555858483 9111716966 13667575449 16529106397 27335150898 33058212794 49587319191 99174638382 181820170367 363640340734 545460511101 1090921022202 2000021874037 4000043748074 6000065622111 12000131244222