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12200112120 = 233573378011
BaseRepresentation
bin10110101110010111…
…01110111111111000
31011111020122220120110
423113023232333320
5144441212041440
65334334424320
7611221146000
oct132713567770
934436586513
1012200112120
1151a0710899
1224459620a0
1311c575ab71
1483a42d000
154b60ed080
hex2d72eeff8

12200112120 has 256 divisors, whose sum is σ = 43841664000. Its totient is φ = 2712890880.

The previous prime is 12200112107. The next prime is 12200112143. The reversal of 12200112120 is 2121100221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12200112096 and 12200112105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1518915 + ... + 1526925.

It is an arithmetic number, because the mean of its divisors is an integer number (171256500).

Almost surely, 212200112120 is an apocalyptic number.

12200112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12200112120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21920832000).

12200112120 is an abundant number, since it is smaller than the sum of its proper divisors (31641551880).

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

12200112120 is a wasteful number, since it uses less digits than its factorization.

12200112120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8083 (or 8065 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12200112120 its reverse (2121100221), we get a palindrome (14321212341).

The spelling of 12200112120 in words is "twelve billion, two hundred million, one hundred twelve thousand, one hundred twenty".