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12010202112220 = 22513183125228337
BaseRepresentation
bin1010111011000101011111…
…0101001010000011011100
31120112011102122011002202121
42232301113311022003130
53033233343220042340
641313224412432324
72346465001356634
oct256612765120334
946464378132677
1012010202112220
113910552a94804
12141b7a84786a4
13691732223890
142d74229136c4
1515c62d90394a
hexaec57d4a0dc

12010202112220 has 48 divisors (see below), whose sum is σ = 27176369347008. Its totient is φ = 4432114068480.

The previous prime is 12010202112187. The next prime is 12010202112241. The reversal of 12010202112220 is 2221120201021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12010202112194 and 12010202112203.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 12138109 + ... + 13090228.

It is an arithmetic number, because the mean of its divisors is an integer number (566174361396).

Almost surely, 212010202112220 is an apocalyptic number.

12010202112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12010202112220 is an abundant number, since it is smaller than the sum of its proper divisors (15166167234788).

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

12010202112220 is a wasteful number, since it uses less digits than its factorization.

12010202112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25230190 (or 25230188 counting only the distinct ones).

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

Adding to 12010202112220 its reverse (2221120201021), we get a palindrome (14231322313241).

The spelling of 12010202112220 in words is "twelve trillion, ten billion, two hundred two million, one hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 1831 3662 7324 9155 18310 23803 36620 47606 95212 119015 238030 476060 25228337 50456674 100913348 126141685 252283370 327968381 504566740 655936762 1311873524 1639841905 3279683810 6559367620 46193085047 92386170094 184772340188 230965425235 461930850470 600510105611 923861700940 1201020211222 2402040422444 3002550528055 6005101056110 12010202112220