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12012110012210 = 2572112228591839
BaseRepresentation
bin1010111011001100100110…
…0011001101111100110010
31120112100100121012110112012
42232303021203031330302
53033301300130342320
641314142005402522
72346563166301400
oct256631143157462
946470317173465
1012012110012210
113911341a46260
12142003b409442
13691977592199
142d7564076470
1515c6e11724c5
hexaecc98cdf32

12012110012210 has 48 divisors (see below), whose sum is σ = 27438422734080. Its totient is φ = 3744034287840.

The previous prime is 12012110012173. The next prime is 12012110012213. The reversal of 12012110012210 is 1221001121021.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12012110012213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1114290530 + ... + 1114301309.

It is an arithmetic number, because the mean of its divisors is an integer number (571633806960).

Almost surely, 212012110012210 is an apocalyptic number.

12012110012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12012110012210 is an abundant number, since it is smaller than the sum of its proper divisors (15426312721870).

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

12012110012210 is a wasteful number, since it uses less digits than its factorization.

12012110012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2228591871 (or 2228591864 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12012110012210 its reverse (1221001121021), we get a palindrome (13233111133231).

The spelling of 12012110012210 in words is "twelve trillion, twelve billion, one hundred ten million, twelve thousand, two hundred ten".

Divisors: 1 2 5 7 10 11 14 22 35 49 55 70 77 98 110 154 245 385 490 539 770 1078 2695 5390 2228591839 4457183678 11142959195 15600142873 22285918390 24514510229 31200285746 49029020458 78000714365 109201000111 122572551145 156001428730 171601571603 218402000222 245145102290 343203143206 546005000555 858007858015 1092010001110 1201211001221 1716015716030 2402422002442 6006055006105 12012110012210