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12120212201201 = 133313281413829
BaseRepresentation
bin1011000001011111010011…
…1100010101111011110001
31120220200101102112122121122
42300113310330111323301
53042034143310414301
641435540522432025
72360441104610216
oct260276474257361
946820342478548
1012120212201201
1139531758a5915
121438b8a662615
1369bc148439a0
142dc89b1a1b0d
1516041b84081b
hexb05f4f15ef1

12120212201201 has 8 divisors (see below), whose sum is σ = 13056476056680. Its totient is φ = 11184511180032.

The previous prime is 12120212201197. The next prime is 12120212201219. The reversal of 12120212201201 is 10210221202121.

It can be written as a sum of positive squares in 4 ways, for example, as 4174466008801 + 7945746192400 = 2043151^2 + 2818820^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12120212201201 - 22 = 12120212201197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12120212201201.

It is not an unprimeable number, because it can be changed into a prime (12120212201281) 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, 140663846 + ... + 140749983.

It is an arithmetic number, because the mean of its divisors is an integer number (1632059507085).

Almost surely, 212120212201201 is an apocalyptic number.

It is an amenable number.

12120212201201 is a deficient number, since it is larger than the sum of its proper divisors (936263855479).

12120212201201 is a wasteful number, since it uses less digits than its factorization.

12120212201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281417155.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12120212201201 its reverse (10210221202121), we get a palindrome (22330433403322).

The spelling of 12120212201201 in words is "twelve trillion, one hundred twenty billion, two hundred twelve million, two hundred one thousand, two hundred one".

Divisors: 1 13 3313 43069 281413829 3658379777 932324015477 12120212201201