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12100000122012 = 22311815511124041
BaseRepresentation
bin1011000000010100000000…
…1101011000010010011100
31120211202012210221122102010
42300011000031120102130
53041221300012401022
641422355135431220
72356124166016515
oct260050015302234
946752183848363
1012100000122012
113945643693640
121435089685510
1369a043242a0a
142db900a71a0c
1515eb3718150c
hexb014035849c

12100000122012 has 48 divisors (see below), whose sum is σ = 30800405389824. Its totient is φ = 3666618480000.

The previous prime is 12100000121999. The next prime is 12100000122019. The reversal of 12100000122012 is 21022100000121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100000122019) 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, 10202712 + ... + 11326752.

It is an arithmetic number, because the mean of its divisors is an integer number (641675112288).

Almost surely, 212100000122012 is an apocalyptic number.

12100000122012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12100000122012 is an abundant number, since it is smaller than the sum of its proper divisors (18700405267812).

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

12100000122012 is a wasteful number, since it uses less digits than its factorization.

12100000122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205610 (or 1205608 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12100000122012 its reverse (21022100000121), we get a palindrome (33122100122133).

The spelling of 12100000122012 in words is "twelve trillion, one hundred billion, one hundred twenty-two thousand, twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 81551 163102 244653 326204 489306 897061 978612 1124041 1794122 2248082 2691183 3372123 3588244 4496164 5382366 6744246 10764732 12364451 13488492 24728902 37093353 49457804 74186706 148373412 91666667591 183333335182 275000002773 366666670364 550000005546 1008333343501 1100000011092 2016666687002 3025000030503 4033333374004 6050000061006 12100000122012