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12102201309940 = 225786444295071
BaseRepresentation
bin1011000000011100001101…
…1010001111101011110100
31120211221220012212120120221
42300013003122033223310
53041240302013404230
641423401410504124
72356232554554160
oct260070332175364
946757805776527
1012102201309940
113946573154715
1214355a2895044
1369a30429bc91
142dba6d13bca0
1515ec1553527a
hexb01c368faf4

12102201309940 has 24 divisors (see below), whose sum is σ = 29045283144192. Its totient is φ = 4149326163360.

The previous prime is 12102201309929. The next prime is 12102201309941. The reversal of 12102201309940 is 4990310220121.

12102201309940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12102201309896 and 12102201309905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102201309941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43222147396 + ... + 43222147675.

It is an arithmetic number, because the mean of its divisors is an integer number (1210220131008).

Almost surely, 212102201309940 is an apocalyptic number.

12102201309940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102201309940 is an abundant number, since it is smaller than the sum of its proper divisors (16943081834252).

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

12102201309940 is a wasteful number, since it uses less digits than its factorization.

12102201309940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86444295087 (or 86444295085 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 12102201309940 in words is "twelve trillion, one hundred two billion, two hundred one million, three hundred nine thousand, nine hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 86444295071 172888590142 345777180284 432221475355 605110065497 864442950710 1210220130994 1728885901420 2420440261988 3025550327485 6051100654970 12102201309940