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12210200022220 = 2251229496753459
BaseRepresentation
bin1011000110101110100010…
…1000101000110011001100
31121020021122211111121022121
42301223220220220303030
53100022442201202340
641545142150022324
72400105065510434
oct261535050506314
947207584447277
1012210200022220
113988353658732
1214525033479a4
136a7555c90665
14302d9660d2c4
15162936ab394a
hexb1ae8a28ccc

12210200022220 has 24 divisors (see below), whose sum is σ = 25662283743600. Its totient is φ = 4880105971392.

The previous prime is 12210200022187. The next prime is 12210200022239. The reversal of 12210200022220 is 2222000201221.

It is a junction number, because it is equal to n+sod(n) for n = 12210200022194 and 12210200022203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248352150 + ... + 248401309.

It is an arithmetic number, because the mean of its divisors is an integer number (1069261822650).

Almost surely, 212210200022220 is an apocalyptic number.

12210200022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210200022220 is an abundant number, since it is smaller than the sum of its proper divisors (13452083721380).

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

12210200022220 is a wasteful number, since it uses less digits than its factorization.

12210200022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496754697 (or 496754695 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12210200022220 its reverse (2222000201221), we get a palindrome (14432200223441).

The spelling of 12210200022220 in words is "twelve trillion, two hundred ten billion, two hundred million, twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1229 2458 4916 6145 12290 24580 496753459 993506918 1987013836 2483767295 4967534590 9935069180 610510001111 1221020002222 2442040004444 3052550005555 6105100011110 12210200022220