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12122102102111 = 31538388891919
BaseRepresentation
bin1011000001100110010110…
…0101101111100001011111
31120220212021010201120021122
42300121211211233201133
53042102031114231421
641440452233521155
72360535663525341
oct260314545574137
946825233646248
1012122102102111
113953a556833a1
1214394175731bb
1369c15624c851
142dc9da19b291
151604cc7062ab
hexb066596f85f

12122102102111 has 16 divisors (see below), whose sum is σ = 12902839971840. Its totient is φ = 11371054150560.

The previous prime is 12122102102107. The next prime is 12122102102137. The reversal of 12122102102111 is 11120120122121.

It is not a de Polignac number, because 12122102102111 - 22 = 12122102102107 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 12122102102111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122102105111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44309591 + ... + 44582328.

It is an arithmetic number, because the mean of its divisors is an integer number (806427498240).

Almost surely, 212122102102111 is an apocalyptic number.

12122102102111 is a deficient number, since it is larger than the sum of its proper divisors (780737869729).

12122102102111 is an equidigital number, since it uses as much as digits as its factorization.

12122102102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88892086.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12122102102111 its reverse (11120120122121), we get a palindrome (23242222224232).

The spelling of 12122102102111 in words is "twelve trillion, one hundred twenty-two billion, one hundred two million, one hundred two thousand, one hundred eleven".

Divisors: 1 31 53 83 1643 2573 4399 136369 88891919 2755649489 4711271707 7378029277 146049422917 228718907587 391035551681 12122102102111