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12011101200220 = 225907662133473
BaseRepresentation
bin1010111011001000110101…
…1010111001111101011100
31120112020202021221111122011
42232302031122321331130
53033242213401401340
641313453531201004
72346526166446513
oct256621532717534
946466667844564
1012011101200220
113910974553941
12141b9b95a6164
1369184658b105
142d74aa0b367a
1515c6828000ea
hexaec8d6b9f5c

12011101200220 has 24 divisors (see below), whose sum is σ = 25251122164464. Its totient is φ = 4799143405056.

The previous prime is 12011101200209. The next prime is 12011101200269. The reversal of 12011101200220 is 2200210111021.

It is a self number, because there is not a number n which added to its sum of digits gives 12011101200220.

It is a congruent number.

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, 331048597 + ... + 331084876.

It is an arithmetic number, because the mean of its divisors is an integer number (1052130090186).

Almost surely, 212011101200220 is an apocalyptic number.

12011101200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011101200220 is an abundant number, since it is smaller than the sum of its proper divisors (13240020964244).

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

12011101200220 is a wasteful number, since it uses less digits than its factorization.

12011101200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662134389 (or 662134387 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12011101200220 its reverse (2200210111021), we get a palindrome (14211311311241).

The spelling of 12011101200220 in words is "twelve trillion, eleven billion, one hundred one million, two hundred thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 907 1814 3628 4535 9070 18140 662133473 1324266946 2648533892 3310667365 6621334730 13242669460 600555060011 1201110120022 2402220240044 3002775300055 6005550600110 12011101200220