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12122110202020 = 2257136660500111
BaseRepresentation
bin1011000001100110011000…
…0100101001000010100100
31120220212021200222002021021
42300121212010221002210
53042102040202431040
641440453123300524
72360536122422260
oct260314604510244
946825250862237
1012122110202020
113953a5a205a35
12143941a21a744
1369c157b275b0
142dc9db2a90a0
151604cd2a624a
hexb06661290a4

12122110202020 has 48 divisors (see below), whose sum is σ = 31330992526848. Its totient is φ = 3836448063360.

The previous prime is 12122110202011. The next prime is 12122110202053. The reversal of 12122110202020 is 2020201122121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12122110201985 and 12122110202003.

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, 3330248236 + ... + 3330251875.

It is an arithmetic number, because the mean of its divisors is an integer number (652729010976).

Almost surely, 212122110202020 is an apocalyptic number.

12122110202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122110202020 is an abundant number, since it is smaller than the sum of its proper divisors (19208882324828).

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

12122110202020 is a wasteful number, since it uses less digits than its factorization.

12122110202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6660500140 (or 6660500138 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12122110202020 its reverse (2020201122121), we get a palindrome (14142311324141).

The spelling of 12122110202020 in words is "twelve trillion, one hundred twenty-two billion, one hundred ten million, two hundred two thousand, twenty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 130 140 182 260 364 455 910 1820 6660500111 13321000222 26642000444 33302500555 46623500777 66605001110 86586501443 93247001554 133210002220 173173002886 186494003108 233117503885 346346005772 432932507215 466235007770 606105510101 865865014430 932470015540 1212211020202 1731730028860 2424422040404 3030527550505 6061055101010 12122110202020