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12122010202020 = 2235202033503367
BaseRepresentation
bin1011000001100110000000…
…0111001010111110100100
31120220212000201210120001120
42300121200013022332210
53042101334102431040
641440435152053540
72360533466430135
oct260314007127644
946825021716046
1012122010202020
113953a08814504
1214393b08342b0
1369c1401b3ab4
142dc9cbcb7c8c
151604c46017d0
hexb06601cafa4

12122010202020 has 24 divisors (see below), whose sum is σ = 33941628565824. Its totient is φ = 3232536053856.

The previous prime is 12122010201967. The next prime is 12122010202051. The reversal of 12122010202020 is 2020201022121.

It is a super-2 number, since 2×121220102020202 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101016751624 + ... + 101016751743.

It is an arithmetic number, because the mean of its divisors is an integer number (1414234523576).

Almost surely, 212122010202020 is an apocalyptic number.

12122010202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122010202020 is an abundant number, since it is smaller than the sum of its proper divisors (21819618363804).

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

12122010202020 is a wasteful number, since it uses less digits than its factorization.

12122010202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202033503379 (or 202033503377 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12122010202020 its reverse (2020201022121), we get a palindrome (14142211224141).

The spelling of 12122010202020 in words is "twelve trillion, one hundred twenty-two billion, ten million, two hundred two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 202033503367 404067006734 606100510101 808134013468 1010167516835 1212201020202 2020335033670 2424402040404 3030502550505 4040670067340 6061005101010 12122010202020