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12122120220202 = 2173371243385093
BaseRepresentation
bin1011000001100110011010…
…1010110110111000101010
31120220212022101211001122001
42300121212222312320222
53042102100234021302
641440454122121214
72360536303525636
oct260314652667052
946825271731561
1012122120220202
113953a64928823
12143942165020a
1369c159c24505
142dc9dc755dc6
151604ce0d4787
hexb0666ab6e2a

12122120220202 has 32 divisors (see below), whose sum is σ = 19311689144592. Its totient is φ = 5687075487744.

The previous prime is 12122120220157. The next prime is 12122120220211. The reversal of 12122120220202 is 20202202122121.

12122120220202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 2843644788721 + 9278475431481 = 1686311^2 + 3046059^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12122120220202.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142414768 + ... + 142499860.

Almost surely, 212122120220202 is an apocalyptic number.

12122120220202 is a deficient number, since it is larger than the sum of its proper divisors (7189568924390).

12122120220202 is a wasteful number, since it uses less digits than its factorization.

12122120220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97882.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12122120220202 its reverse (20202202122121), we get a palindrome (32324322342323).

The spelling of 12122120220202 in words is "twelve trillion, one hundred twenty-two billion, one hundred twenty million, two hundred twenty thousand, two hundred two".

Divisors: 1 2 17 34 337 674 5729 11458 12433 24866 85093 170186 211361 422722 1446581 2893162 4189921 8379842 28676341 57352682 71228657 142457314 487497797 974995594 1057961269 2115922538 17985341573 35970683146 356532947653 713065895306 6061060110101 12122120220202