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12102020121201 = 397247716789543
BaseRepresentation
bin1011000000011011100010…
…0111000100001001110001
31120211221102120221020100220
42300012320213010021301
53041234414122334301
641423331415203253
72356225224515133
oct260067047041161
946757376836326
1012102020121201
11394648a94a95a
121435552076529
1369a2a589ccca
142dba53055053
1515ec04694936
hexb01b89c4271

12102020121201 has 16 divisors (see below), whose sum is σ = 16308960092544. Its totient is φ = 7981613950464.

The previous prime is 12102020121199. The next prime is 12102020121203. The reversal of 12102020121201 is 10212102020121.

It is an interprime number because it is at equal distance from previous prime (12102020121199) and next prime (12102020121203).

It is not a de Polignac number, because 12102020121201 - 21 = 12102020121199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12102020121203) 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, 7673965 + ... + 9115578.

It is an arithmetic number, because the mean of its divisors is an integer number (1019310005784).

Almost surely, 212102020121201 is an apocalyptic number.

It is an amenable number.

12102020121201 is a deficient number, since it is larger than the sum of its proper divisors (4206939971343).

12102020121201 is a wasteful number, since it uses less digits than its factorization.

12102020121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16792120.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12102020121201 its reverse (10212102020121), we get a palindrome (22314122141322).

The spelling of 12102020121201 in words is "twelve trillion, one hundred two billion, twenty million, one hundred twenty-one thousand, two hundred one".

Divisors: 1 3 97 291 2477 7431 240269 720807 16789543 50368629 1628585671 4885757013 41587698011 124763094033 4034006707067 12102020121201