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12220120122220 = 225683894591517
BaseRepresentation
bin1011000111010011011111…
…1010110100001101101100
31121021020021011220220020201
42301310313322310031230
53100203301222402340
641553502400123244
72400605653123663
oct261646772641554
947236234826221
1012220120122220
11399158425a68a
121454411606524
136a847725410a
14303657cd3dda
15162d1793c79a
hexb1d37eb436c

12220120122220 has 24 divisors (see below), whose sum is σ = 25699825129104. Its totient is φ = 4880891311296.

The previous prime is 12220120122211. The next prime is 12220120122233. The reversal of 12220120122220 is 2222102102221.

It is a super-2 number, since 2×122201201222202 (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447282099 + ... + 447309418.

It is an arithmetic number, because the mean of its divisors is an integer number (1070826047046).

Almost surely, 212220120122220 is an apocalyptic number.

12220120122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220120122220 is an abundant number, since it is smaller than the sum of its proper divisors (13479705006884).

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

12220120122220 is a wasteful number, since it uses less digits than its factorization.

12220120122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894592209 (or 894592207 counting only the distinct ones).

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

Adding to 12220120122220 its reverse (2222102102221), we get a palindrome (14442222224441).

The spelling of 12220120122220 in words is "twelve trillion, two hundred twenty billion, one hundred twenty million, one hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 683 1366 2732 3415 6830 13660 894591517 1789183034 3578366068 4472957585 8945915170 17891830340 611006006111 1222012012222 2444024024444 3055030030555 6110060061110 12220120122220