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12201002212 = 2271812407459
BaseRepresentation
bin10110101110011110…
…01000010011100100
31011111022100010112211
423113033020103210
5144441424032322
65334405453204
7611231544010
oct132717102344
934438303484
1012201002212
1151a1169603
122446111204
1311c59b0049
1483a5c1540
154b6226b77
hex2d73c84e4

12201002212 has 24 divisors (see below), whose sum is σ = 24536832320. Its totient is φ = 5200109280.

The previous prime is 12201002201. The next prime is 12201002213. The reversal of 12201002212 is 21220010221.

It is a happy number.

12201002212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×122010022123 (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12201002192 and 12201002201.

It is not an unprimeable number, because it can be changed into a prime (12201002213) 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, 1198662 + ... + 1208797.

Almost surely, 212201002212 is an apocalyptic number.

It is an amenable number.

12201002212 is an abundant number, since it is smaller than the sum of its proper divisors (12335830108).

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

12201002212 is a wasteful number, since it uses less digits than its factorization.

12201002212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407651 (or 2407649 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12201002212 its reverse (21220010221), we get a palindrome (33421012433).

The spelling of 12201002212 in words is "twelve billion, two hundred one million, two thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 181 362 724 1267 2534 5068 2407459 4814918 9629836 16852213 33704426 67408852 435750079 871500158 1743000316 3050250553 6100501106 12201002212