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12201010020220 = 22571601174731159
BaseRepresentation
bin1011000110001100010011…
…0111100011111101111100
31121012101221100220010120011
42301203010313203331330
53044400132031121340
641541022220233004
72366331255002620
oct261430467437574
947171840803504
1012201010020220
11398446809315a
12145077969b764
136a6720046a58
14302763c99180
15162599da50ea
hexb18c4de3f7c

12201010020220 has 96 divisors (see below), whose sum is σ = 29318427048960. Its totient is φ = 4178063462400.

The previous prime is 12201010020217. The next prime is 12201010020281. The reversal of 12201010020220 is 2202001010221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12201010020220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 391557001 + ... + 391588159.

It is an arithmetic number, because the mean of its divisors is an integer number (305400281760).

Almost surely, 212201010020220 is an apocalyptic number.

12201010020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201010020220 is an abundant number, since it is smaller than the sum of its proper divisors (17117417028740).

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

12201010020220 is a wasteful number, since it uses less digits than its factorization.

12201010020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34523 (or 34521 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12201010020220 its reverse (2202001010221), we get a palindrome (14403011030441).

Subtracting from 12201010020220 its reverse (2202001010221), we obtain a palindrome (9999009009999).

The spelling of 12201010020220 in words is "twelve trillion, two hundred one billion, ten million, twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1601 1747 3202 3494 6404 6988 8005 8735 11207 12229 16010 17470 22414 24458 31159 32020 34940 44828 48916 56035 61145 62318 112070 122290 124636 155795 218113 224140 244580 311590 436226 623180 872452 1090565 2181130 2796947 4362260 5593894 11187788 13984735 19578629 27969470 39157258 49885559 54434773 55938940 78314516 97893145 99771118 108869546 195786290 199542236 217739092 249427795 272173865 349198913 381043411 391572580 498855590 544347730 698397826 762086822 997711180 1088695460 1396795652 1524173644 1745994565 1905217055 3491989130 3810434110 6983978260 7620868220 87150071573 174300143146 348600286292 435750357865 610050501011 871500715730 1220101002022 1743001431460 2440202004044 3050252505055 6100505010110 12201010020220