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12102012120212 = 227281043761879
BaseRepresentation
bin1011000000011011100000…
…1000100010110010010100
31120211221102000212202001222
42300012320020202302110
53041234410100321322
641423330531505512
72356225066512500
oct260067010426224
946757360782058
1012102012120212
113946486385673
12143554b458298
1369a2a402b2b1
142dba51d71300
1515ec03b13e42
hexb01b8222c94

12102012120212 has 36 divisors (see below), whose sum is σ = 24636575285280. Its totient is φ = 5186505817584.

The previous prime is 12102012120203. The next prime is 12102012120221. The reversal of 12102012120212 is 21202121020121.

It is an interprime number because it is at equal distance from previous prime (12102012120203) and next prime (12102012120221).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15503489 + ... + 16265367.

It is an arithmetic number, because the mean of its divisors is an integer number (684349313480).

Almost surely, 212102012120212 is an apocalyptic number.

It is an amenable number.

12102012120212 is an abundant number, since it is smaller than the sum of its proper divisors (12534563165068).

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

12102012120212 is a wasteful number, since it uses less digits than its factorization.

12102012120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842940 (or 842931 counting only the distinct ones).

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

Adding to 12102012120212 its reverse (21202121020121), we get a palindrome (33304133140333).

The spelling of 12102012120212 in words is "twelve trillion, one hundred two billion, twelve million, one hundred twenty thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 49 98 196 81043 162086 324172 567301 761879 1134602 1523758 2269204 3047516 3971107 5333153 7942214 10666306 15884428 21332612 37332071 74664142 149328284 61744959797 123489919594 246979839188 432214718579 864429437158 1728858874316 3025503030053 6051006060106 12102012120212