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101201201212 = 22176421231779
BaseRepresentation
bin101111001000000001…
…1111100100000111100
3100200012212220200112111
41132100003330200330
53124230001414322
6114254032543404
710211601005566
oct1362003744074
9320185820474
10101201201212
1139a12492381
12177440b1b64
13970a6348a7
144c807c4336
152974911177
hex17900fc83c

101201201212 has 24 divisors (see below), whose sum is σ = 187549886160. Its totient is φ = 47616472320.

The previous prime is 101201201159. The next prime is 101201201219. The reversal of 101201201212 is 212102102101.

101201201212 is digitally balanced in base 3, 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 = 101201201192 and 101201201201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101201201219) 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, 320739 + ... + 552517.

It is an arithmetic number, because the mean of its divisors is an integer number (7814578590).

Almost surely, 2101201201212 is an apocalyptic number.

It is an amenable number.

101201201212 is a deficient number, since it is larger than the sum of its proper divisors (86348684948).

101201201212 is a wasteful number, since it uses less digits than its factorization.

101201201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238221 (or 238219 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101201201212 its reverse (212102102101), we get a palindrome (313303303313).

The spelling of 101201201212 in words is "one hundred one billion, two hundred one million, two hundred one thousand, two hundred twelve".

Divisors: 1 2 4 17 34 68 6421 12842 25684 109157 218314 231779 436628 463558 927116 3940243 7880486 15760972 1488252959 2976505918 5953011836 25300300303 50600600606 101201201212