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12120211002101 = 612931279530203
BaseRepresentation
bin1011000001011111010011…
…0111110001001011110101
31120220200101100021201202112
42300113310313301023311
53042034143004031401
641435540441020405
72360441061454256
oct260276467611365
946820340251675
1012120211002101
113953175156a24
121438b8a184705
1369bc14513c67
142dc89ad6cb2d
1516041b6a53bb
hexb05f4df12f5

12120211002101 has 16 divisors (see below), whose sum is σ = 12370634895360. Its totient is φ = 11871519693120.

The previous prime is 12120211002023. The next prime is 12120211002187. The reversal of 12120211002101 is 10120011202121.

It is a cyclic number.

It is not a de Polignac number, because 12120211002101 - 238 = 11845333095157 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 (12120211002191) 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, 22594466 + ... + 23124668.

It is an arithmetic number, because the mean of its divisors is an integer number (773164680960).

Almost surely, 212120211002101 is an apocalyptic number.

It is an amenable number.

12120211002101 is a deficient number, since it is larger than the sum of its proper divisors (250423893259).

12120211002101 is a wasteful number, since it uses less digits than its factorization.

12120211002101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531836.

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

Adding to 12120211002101 its reverse (10120011202121), we get a palindrome (22240222204222).

It can be divided in two parts, 1212021 and 1002101, that added together give a palindrome (2214122).

The spelling of 12120211002101 in words is "twelve trillion, one hundred twenty billion, two hundred eleven million, two thousand, one hundred one".

Divisors: 1 61 293 1279 17873 78019 374747 530203 22859567 32342383 155349479 678129637 9476318219 41365907857 198691983641 12120211002101