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12011111102210 = 2511250111198091
BaseRepresentation
bin1010111011001000111000…
…0000101011011100000010
31120112020202222120120121112
42232302032000223130002
53033242223420232320
641313454523323322
72346526346560343
oct256621600533402
946466688516545
1012011111102210
11391097a0a7400
12141ba00980542
1369184864718c
142d74ab5300ca
1515c683608ec5
hexaec8e02b702

12011111102210 has 48 divisors (see below), whose sum is σ = 23764726411776. Its totient is φ = 4367567556000.

The previous prime is 12011111102203. The next prime is 12011111102261. The reversal of 12011111102210 is 1220111111021.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 60535265 + ... + 60733355.

It is an arithmetic number, because the mean of its divisors is an integer number (495098466912).

Almost surely, 212011111102210 is an apocalyptic number.

12011111102210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12011111102210 is a deficient number, since it is larger than the sum of its proper divisors (11753615309566).

12011111102210 is a wasteful number, since it uses less digits than its factorization.

12011111102210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248231 (or 248220 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 12011111102210 its reverse (1220111111021), we get a palindrome (13231222213231).

The spelling of 12011111102210 in words is "twelve trillion, eleven billion, one hundred eleven million, one hundred two thousand, two hundred ten".

Divisors: 1 2 5 10 11 22 55 110 121 242 605 1210 50111 100222 198091 250555 396182 501110 551221 990455 1102442 1980910 2179001 2756105 4358002 5512210 6063431 10895005 12126862 21790010 23969011 30317155 47938022 60634310 119845055 239690110 9926538101 19853076202 49632690505 99265381010 109191919111 218383838222 545959595555 1091919191110 1201111110221 2402222220442 6005555551105 12011111102210