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12122102021223 = 313136978343263
BaseRepresentation
bin1011000001100110010110…
…0101011011110001100111
31120220212021010120110022210
42300121211211123301213
53042102031104134343
641440452232054503
72360535663040455
oct260314545336147
946825233513283
1012122102021223
113953a55628647
121439417534433
1369c156221a9c
142dc9da1799d5
151604cc6dc333
hexb066595bc67

12122102021223 has 16 divisors (see below), whose sum is σ = 16290590063616. Its totient is φ = 8017541051520.

The previous prime is 12122102021189. The next prime is 12122102021231. The reversal of 12122102021223 is 32212020122121.

It is not a de Polignac number, because 12122102021223 - 29 = 12122102020711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12122102021223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122102021273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2718711 + ... + 5624552.

It is an arithmetic number, because the mean of its divisors is an integer number (1018161878976).

Almost surely, 212122102021223 is an apocalyptic number.

12122102021223 is a deficient number, since it is larger than the sum of its proper divisors (4168488042393).

12122102021223 is a wasteful number, since it uses less digits than its factorization.

12122102021223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8347094.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12122102021223 its reverse (32212020122121), we get a palindrome (44334122143344).

The spelling of 12122102021223 in words is "twelve trillion, one hundred twenty-two billion, one hundred two million, twenty-one thousand, two hundred twenty-three".

Divisors: 1 3 131 393 3697 11091 484307 1452921 8343263 25029789 1092967453 3278902359 30845043311 92535129933 4040700673741 12122102021223