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12043000221 = 372366924229
BaseRepresentation
bin10110011011101000…
…11001100110011101
31011002022000210120020
423031310121212131
5144131002001341
65311003142353
7604302545550
oct131564314635
934068023506
1012043000221
11511aa6134a
1224012149b9
13119c03bb45
14823612697
154a7416566
hex2cdd1999d

12043000221 has 16 divisors (see below), whose sum is σ = 18352771200. Its totient is φ = 6881139648.

The previous prime is 12043000219. The next prime is 12043000267. The reversal of 12043000221 is 12200034021.

It is not a de Polignac number, because 12043000221 - 21 = 12043000219 is a prime.

It is a super-3 number, since 3×120430002213 (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12043000221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12043000271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 484935 + ... + 509163.

It is an arithmetic number, because the mean of its divisors is an integer number (1147048200).

Almost surely, 212043000221 is an apocalyptic number.

It is an amenable number.

12043000221 is a deficient number, since it is larger than the sum of its proper divisors (6309770979).

12043000221 is a wasteful number, since it uses less digits than its factorization.

12043000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47908.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12043000221 its reverse (12200034021), we get a palindrome (24243034242).

The spelling of 12043000221 in words is "twelve billion, forty-three million, two hundred twenty-one", and thus it is an aban number.

Divisors: 1 3 7 21 23669 24229 71007 72687 165683 169603 497049 508809 573476201 1720428603 4014333407 12043000221