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12231021213210 = 2351965633269531
BaseRepresentation
bin1011000111111100000110…
…1011001011011000011010
31121022021101220020200211110
42301333001223023120122
53100343112412310320
642002504212241150
72401443051640242
oct261770153133032
947267356220743
1012231021213210
113996168681698
1214565543101b6
136a94c382a707
14303dad9b8b22
151632549905e0
hexb1fc1acb61a

12231021213210 has 64 divisors (see below), whose sum is σ = 30904139589120. Its totient is φ = 3089470443840.

The previous prime is 12231021213167. The next prime is 12231021213239. The reversal of 12231021213210 is 1231212013221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2106145 + ... + 5375675.

It is an arithmetic number, because the mean of its divisors is an integer number (482877181080).

Almost surely, 212231021213210 is an apocalyptic number.

12231021213210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12231021213210 is an abundant number, since it is smaller than the sum of its proper divisors (18673118375910).

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

12231021213210 is a wasteful number, since it uses less digits than its factorization.

12231021213210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3276123.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 12231021213210 its reverse (1231212013221), we get a palindrome (13462233226431).

The spelling of 12231021213210 in words is "twelve trillion, two hundred thirty-one billion, twenty-one million, two hundred thirteen thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 570 6563 13126 19689 32815 39378 65630 98445 124697 196890 249394 374091 623485 748182 1246970 1870455 3269531 3740910 6539062 9808593 16347655 19617186 32695310 49042965 62121089 98085930 124242178 186363267 310605445 372726534 621210890 931816335 1863632670 21457931953 42915863906 64373795859 107289659765 128747591718 214579319530 321868979295 407700707107 643737958590 815401414214 1223102121321 2038503535535 2446204242642 4077007071070 6115510606605 12231021213210