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12122102102012 = 227881491410009
BaseRepresentation
bin1011000001100110010110…
…0101101111011111111100
31120220212021010201120010222
42300121211211233133330
53042102031114231022
641440452233520512
72360535663525140
oct260314545573774
946825233646128
1012122102102012
113953a55683311
121439417573138
1369c15624c7a6
142dc9da19b220
151604cc706242
hexb066596f7fc

12122102102012 has 24 divisors (see below), whose sum is σ = 24271723213920. Its totient is φ = 5189289684480.

The previous prime is 12122102101969. The next prime is 12122102102053. The reversal of 12122102102012 is 21020120122121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245680337 + ... + 245729672.

It is an arithmetic number, because the mean of its divisors is an integer number (1011321800580).

Almost surely, 212122102102012 is an apocalyptic number.

It is an amenable number.

12122102102012 is an abundant number, since it is smaller than the sum of its proper divisors (12149621111908).

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

12122102102012 is a wasteful number, since it uses less digits than its factorization.

12122102102012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491410901 (or 491410899 counting only the distinct ones).

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

Adding to 12122102102012 its reverse (21020120122121), we get a palindrome (33142222224133).

The spelling of 12122102102012 in words is "twelve trillion, one hundred twenty-two billion, one hundred two million, one hundred two thousand, twelve".

Divisors: 1 2 4 7 14 28 881 1762 3524 6167 12334 24668 491410009 982820018 1965640036 3439870063 6879740126 13759480252 432932217929 865864435858 1731728871716 3030525525503 6061051051006 12122102102012