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12011201224 = 2311314402933
BaseRepresentation
bin10110010111110110…
…00110001011001000
31011000002012020112121
423023323012023020
5144044331414344
65303505421024
7603435345241
oct131373061310
934002166477
1012011201224
115104012290
1223b263a774
131195587079
1481d2d5cc8
154a4734684
hex2cbec62c8

12011201224 has 32 divisors (see below), whose sum is σ = 25360899840. Its totient is φ = 5283518400.

The previous prime is 12011201221. The next prime is 12011201281. The reversal of 12011201224 is 42210211021.

12011201224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12011201198 and 12011201207.

It is not an unprimeable number, because it can be changed into a prime (12011201221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2198739 + ... + 2204194.

It is an arithmetic number, because the mean of its divisors is an integer number (792528120).

Almost surely, 212011201224 is an apocalyptic number.

It is an amenable number.

12011201224 is an abundant number, since it is smaller than the sum of its proper divisors (13349698616).

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

12011201224 is a wasteful number, since it uses less digits than its factorization.

12011201224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4402981 (or 4402977 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12011201224 its reverse (42210211021), we get a palindrome (54221412245).

The spelling of 12011201224 in words is "twelve billion, eleven million, two hundred one thousand, two hundred twenty-four".

Divisors: 1 2 4 8 11 22 31 44 62 88 124 248 341 682 1364 2728 4402933 8805866 17611732 35223464 48432263 96864526 136490923 193729052 272981846 387458104 545963692 1091927384 1501400153 3002800306 6005600612 12011201224