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12011110102220 = 225718458528241
BaseRepresentation
bin1010111011001000110111…
…1100110111010011001100
31120112020202220200202212212
42232302031330313103030
53033242223141232340
641313454450045552
72346526335224045
oct256621574672314
946466686622785
1012011110102220
113910979584069
12141ba005798b8
13691848386c78
142d74ab34d8cc
1515c6834aca65
hexaec8df374cc

12011110102220 has 24 divisors (see below), whose sum is σ = 25578589403808. Its totient is φ = 4736775814400.

The previous prime is 12011110102139. The next prime is 12011110102231. The reversal of 12011110102220 is 2220101111021.

It is a super-3 number, since 3×120111101022203 (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12011110102195 and 12011110102204.

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, 4229262701 + ... + 4229265540.

It is an arithmetic number, because the mean of its divisors is an integer number (1065774558492).

Almost surely, 212011110102220 is an apocalyptic number.

12011110102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011110102220 is an abundant number, since it is smaller than the sum of its proper divisors (13567479301588).

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

12011110102220 is a wasteful number, since it uses less digits than its factorization.

12011110102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8458528321 (or 8458528319 counting only the distinct ones).

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

Adding to 12011110102220 its reverse (2220101111021), we get a palindrome (14231211213241).

The spelling of 12011110102220 in words is "twelve trillion, eleven billion, one hundred ten million, one hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 71 142 284 355 710 1420 8458528241 16917056482 33834112964 42292641205 84585282410 169170564820 600555505111 1201111010222 2402222020444 3002777525555 6005555051110 12011110102220