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12201022212211 = 78327983750457
BaseRepresentation
bin1011000110001100010110…
…0110000100100001110011
31121012101222012211112211101
42301203011212010201303
53044400143141242321
641541023333425231
72366331463432030
oct261430546044163
947171865745741
1012201022212211
113984473a60188
12145078179b217
136a6722725251
14302765750387
1516259aeb2791
hexb18c5984873

12201022212211 has 16 divisors (see below), whose sum is σ = 14112548803584. Its totient is φ = 10331635817664.

The previous prime is 12201022212109. The next prime is 12201022212217. The reversal of 12201022212211 is 11221222010221.

It is not a de Polignac number, because 12201022212211 - 215 = 12201022179443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12201022212217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15882895 + ... + 16633351.

It is an arithmetic number, because the mean of its divisors is an integer number (882034300224).

Almost surely, 212201022212211 is an apocalyptic number.

12201022212211 is a deficient number, since it is larger than the sum of its proper divisors (1911526591373).

12201022212211 is an equidigital number, since it uses as much as digits as its factorization.

12201022212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778530.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12201022212211 its reverse (11221222010221), we get a palindrome (23422244222432).

The spelling of 12201022212211 in words is "twelve trillion, two hundred one billion, twenty-two million, two hundred twelve thousand, two hundred eleven".

Divisors: 1 7 83 581 27983 195881 750457 2322589 5253199 16258123 62287931 436015517 21000038231 147000267617 1743003173173 12201022212211