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12102102120101 = 731285411954033
BaseRepresentation
bin1011000000011011110101…
…1111110111011010100101
31120211221122022020012201012
42300012331133313122211
53041240101120320401
641423343504512005
72356230241505030
oct260067537673245
946757568205635
1012102102120101
113946522166944
12143557561b605
1369a2b9880176
142dba5dcbc017
1515ec0b9908bb
hexb01bd7f76a5

12102102120101 has 16 divisors (see below), whose sum is σ = 14277641837568. Its totient is φ = 10038253190400.

The previous prime is 12102102120049. The next prime is 12102102120133. The reversal of 12102102120101 is 10102120120121.

It is a cyclic number.

It is not a de Polignac number, because 12102102120101 - 26 = 12102102120037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102102120191) 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, 5216381 + ... + 7170413.

It is an arithmetic number, because the mean of its divisors is an integer number (892352614848).

Almost surely, 212102102120101 is an apocalyptic number.

It is an amenable number.

12102102120101 is a deficient number, since it is larger than the sum of its proper divisors (2175539717467).

12102102120101 is a wasteful number, since it uses less digits than its factorization.

12102102120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982612.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12102102120101 its reverse (10102120120121), we get a palindrome (22204222240222).

The spelling of 12102102120101 in words is "twelve trillion, one hundred two billion, one hundred two million, one hundred twenty thousand, one hundred one".

Divisors: 1 7 31 217 28541 199787 884771 1954033 6193397 13678231 60575023 424025161 55770055853 390390390971 1728871731443 12102102120101