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12200000201220 = 22351317920060347
BaseRepresentation
bin1011000110001000100010…
…1011011010001000000100
31121012022022222202000022110
42301202020223122020010
53044341100022414340
641540334104301020
72366264243455116
oct261421053321004
947168288660273
1012200000201220
113983a9a0731a7
121450537471770
136a65bba7c510
143026a9b133b6
1516253b3d4680
hexb1888ada204

12200000201220 has 96 divisors (see below), whose sum is σ = 38951674892928. Its totient is φ = 2826425382912.

The previous prime is 12200000201209. The next prime is 12200000201227. The reversal of 12200000201220 is 2210200000221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12200000201196 and 12200000201205.

It is not an unprimeable number, because it can be changed into a prime (12200000201227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 460016914 + ... + 460043433.

It is an arithmetic number, because the mean of its divisors is an integer number (405746613468).

Almost surely, 212200000201220 is an apocalyptic number.

12200000201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12200000201220 is an abundant number, since it is smaller than the sum of its proper divisors (26751674691708).

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

12200000201220 is a wasteful number, since it uses less digits than its factorization.

12200000201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920060389 (or 920060387 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 12200000201220 its reverse (2210200000221), we get a palindrome (14410200201441).

The spelling of 12200000201220 in words is "twelve trillion, two hundred billion, two hundred one thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 17 20 26 30 34 39 51 52 60 65 68 78 85 102 130 156 170 195 204 221 255 260 340 390 442 510 663 780 884 1020 1105 1326 2210 2652 3315 4420 6630 13260 920060347 1840120694 2760181041 3680241388 4600301735 5520362082 9200603470 11040724164 11960784511 13800905205 15641025899 18401206940 23921569022 27601810410 31282051798 35882353533 46923077697 47843138044 55203620820 59803922555 62564103596 71764707066 78205129495 93846155394 119607845110 143529414132 156410258990 179411767665 187692310788 203333336687 234615388485 239215690220 312820517980 358823535330 406666673374 469230776970 610000010061 717647070660 813333346748 938461553940 1016666683435 1220000020122 2033333366870 2440000040244 3050000050305 4066666733740 6100000100610 12200000201220