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12122102020211 = 25453274762493
BaseRepresentation
bin1011000001100110010110…
…0101011011100001110011
31120220212021010120101221022
42300121211211123201303
53042102031104121321
641440452232050055
72360535663034511
oct260314545334163
946825233511838
1012122102020211
113953a55627907
12143941753392b
1369c1562214a1
142dc9da1794b1
151604cc6dbdab
hexb066595b873

12122102020211 has 4 divisors (see below), whose sum is σ = 12122109328032. Its totient is φ = 12122094712392.

The previous prime is 12122102020159. The next prime is 12122102020243. The reversal of 12122102020211 is 11202020122121.

12122102020211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12122102020211 - 214 = 12122102003827 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12122102020211.

It is not an unprimeable number, because it can be changed into a prime (12122102020711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164081 + ... + 4926573.

It is an arithmetic number, because the mean of its divisors is an integer number (3030527332008).

Almost surely, 212122102020211 is an apocalyptic number.

12122102020211 is a deficient number, since it is larger than the sum of its proper divisors (7307821).

12122102020211 is an equidigital number, since it uses as much as digits as its factorization.

12122102020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7307820.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12122102020211 its reverse (11202020122121), we get a palindrome (23324122142332).

The spelling of 12122102020211 in words is "twelve trillion, one hundred twenty-two billion, one hundred two million, twenty thousand, two hundred eleven".

Divisors: 1 2545327 4762493 12122102020211