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112201212012 = 22319492110579
BaseRepresentation
bin110100001111110110…
…1101010000001101100
3101201121111101010120220
41220133231222001230
53314242002241022
6123313341211340
711051310365121
oct1503755520154
9351544333526
10112201212012
114364772829a
12198b3b60b50
13a771564116
145605698748
152dba4a385c
hex1a1fb6a06c

112201212012 has 24 divisors (see below), whose sum is σ = 275581924800. Its totient is φ = 35431961616.

The previous prime is 112201212001. The next prime is 112201212017. The reversal of 112201212012 is 210212102211.

It is a super-2 number, since 2×1122012120122 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 112201211982 and 112201212000.

It is not an unprimeable number, because it can be changed into a prime (112201212017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246055062 + ... + 246055517.

It is an arithmetic number, because the mean of its divisors is an integer number (11482580200).

Almost surely, 2112201212012 is an apocalyptic number.

112201212012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

112201212012 is an abundant number, since it is smaller than the sum of its proper divisors (163380712788).

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

112201212012 is a wasteful number, since it uses less digits than its factorization.

112201212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492110605 (or 492110603 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 112201212012 its reverse (210212102211), we get a palindrome (322413314223).

The spelling of 112201212012 in words is "one hundred twelve billion, two hundred one million, two hundred twelve thousand, twelve".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 492110579 984221158 1476331737 1968442316 2952663474 5905326948 9350101001 18700202002 28050303003 37400404004 56100606006 112201212012