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12200221201020 = 2235488574161881
BaseRepresentation
bin1011000110001001010111…
…0110011101001001111100
31121012022220101120222001020
42301202111312131021330
53044342023111413040
641540412041144140
72366302566104316
oct261422566351174
947168811528036
1012200221201020
1139840a2899666
12145059948b050
136a66257aa028
143026cb2007b6
151625509dacd0
hexb1895d9d27c

12200221201020 has 48 divisors (see below), whose sum is σ = 34161326767008. Its totient is φ = 3253324948480.

The previous prime is 12200221200953. The next prime is 12200221201111. The reversal of 12200221201020 is 2010212200221.

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

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, 850480 + ... + 5012360.

It is an arithmetic number, because the mean of its divisors is an integer number (711694307646).

Almost surely, 212200221201020 is an apocalyptic number.

12200221201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12200221201020 is an abundant number, since it is smaller than the sum of its proper divisors (21961105565988).

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

12200221201020 is a wasteful number, since it uses less digits than its factorization.

12200221201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4210750 (or 4210748 counting only the distinct ones).

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

Adding to 12200221201020 its reverse (2010212200221), we get a palindrome (14210433401241).

The spelling of 12200221201020 in words is "twelve trillion, two hundred billion, two hundred twenty-one million, two hundred one thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 48857 97714 146571 195428 244285 293142 488570 586284 732855 977140 1465710 2931420 4161881 8323762 12485643 16647524 20809405 24971286 41618810 49942572 62428215 83237620 124856430 249712860 203337020017 406674040034 610011060051 813348080068 1016685100085 1220022120102 2033370200170 2440044240204 3050055300255 4066740400340 6100110600510 12200221201020