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12122012120 = 235303050303
BaseRepresentation
bin10110100101000011…
…10011100111011000
31011021210201000111212
423102201303213120
5144311213341440
65322504442252
7606252255131
oct132241634730
934253630455
1012122012120
115160618139
122423779388
1311b251454a
1482dcdcc88
154ae322465
hex2d28739d8

12122012120 has 16 divisors (see below), whose sum is σ = 27274527360. Its totient is φ = 4848804832.

The previous prime is 12122012107. The next prime is 12122012143. The reversal of 12122012120 is 2121022121.

12122012120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12122012095 and 12122012104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151525112 + ... + 151525191.

It is an arithmetic number, because the mean of its divisors is an integer number (1704657960).

Almost surely, 212122012120 is an apocalyptic number.

12122012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122012120 is an abundant number, since it is smaller than the sum of its proper divisors (15152515240).

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

12122012120 is a wasteful number, since it uses less digits than its factorization.

12122012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303050314 (or 303050310 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12122012120 its reverse (2121022121), we get a palindrome (14243034241).

The spelling of 12122012120 in words is "twelve billion, one hundred twenty-two million, twelve thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 303050303 606100606 1212201212 1515251515 2424402424 3030503030 6061006060 12122012120