Search a number
-
+
12010220211220 = 2257117798844293
BaseRepresentation
bin1010111011000101100011…
…1010001100110000010100
31120112011110220012121220221
42232301120322030300110
53033233412333224340
641313230300404124
72346465311250460
oct256613072146024
946464426177827
1012010220211220
113910562226860
12141b7b2546644
13691735bbc94a
142d74250a54a0
1515c6302cb44a
hexaec58e8cc14

12010220211220 has 48 divisors (see below), whose sum is σ = 31444940193408. Its totient is φ = 3743445260160.

The previous prime is 12010220211203. The next prime is 12010220211247. The reversal of 12010220211220 is 2211202201021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12010220211194 and 12010220211203.

It is a congruent number.

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, 3899420607 + ... + 3899423686.

It is an arithmetic number, because the mean of its divisors is an integer number (655102920696).

Almost surely, 212010220211220 is an apocalyptic number.

12010220211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12010220211220 is an abundant number, since it is smaller than the sum of its proper divisors (19434719982188).

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

12010220211220 is a wasteful number, since it uses less digits than its factorization.

12010220211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7798844320 (or 7798844318 counting only the distinct ones).

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

Adding to 12010220211220 its reverse (2211202201021), we get a palindrome (14221422412241).

The spelling of 12010220211220 in words is "twelve trillion, ten billion, two hundred twenty million, two hundred eleven thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 140 154 220 308 385 770 1540 7798844293 15597688586 31195377172 38994221465 54591910051 77988442930 85787287223 109183820102 155976885860 171574574446 218367640204 272959550255 343149148892 428936436115 545919100510 600511010561 857872872230 1091838201020 1201022021122 1715745744460 2402044042244 3002555052805 6005110105610 12010220211220