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21200210120201 = 722871132421033
BaseRepresentation
bin1001101001000000011101…
…11111100100111000001001
32210001201110002112211100212
410310200032333210320021
510234321012242321301
6113031124142210505
74315443653512160
oct464401677447011
983051402484325
1021200210120201
116833a5aa19592
1224648ab583a35
13baa22c28a208
1453414a6403d7
1526b6ed2294bb
hex13480efe4e09

21200210120201 has 8 divisors (see below), whose sum is σ = 24229871117184. Its totient is φ = 18170814011040.

The previous prime is 21200210120171. The next prime is 21200210120239. The reversal of 21200210120201 is 10202101200212.

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 21200210120201 - 214 = 21200210103817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21200210120251) 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, 66050420 + ... + 66370613.

It is an arithmetic number, because the mean of its divisors is an integer number (3028733889648).

Almost surely, 221200210120201 is an apocalyptic number.

It is an amenable number.

21200210120201 is a deficient number, since it is larger than the sum of its proper divisors (3029660996983).

21200210120201 is a wasteful number, since it uses less digits than its factorization.

21200210120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132443911.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21200210120201 its reverse (10202101200212), we get a palindrome (31402311320413).

The spelling of 21200210120201 in words is "twenty-one trillion, two hundred billion, two hundred ten million, one hundred twenty thousand, two hundred one".

Divisors: 1 7 22871 160097 132421033 926947231 3028601445743 21200210120201