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12212012031352 = 237381775712121
BaseRepresentation
bin1011000110110101010010…
…1000111001110101111000
31121020110100010010012112221
42301231110220321311320
53100040200040000402
641550042035413424
72400201020363050
oct261552450716570
947213303105487
1012212012031352
1139890a3474a41
12145292a154274
136a77844c6903
143030c9130560
151629e0be0337
hexb1b54a39d78

12212012031352 has 32 divisors (see below), whose sum is σ = 26169287245920. Its totient is φ = 5233581434880.

The previous prime is 12212012031337. The next prime is 12212012031353. The reversal of 12212012031352 is 25313021021221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212012031353) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 718149 + ... + 4993972.

It is an arithmetic number, because the mean of its divisors is an integer number (817790226435).

Almost surely, 212212012031352 is an apocalyptic number.

It is an amenable number.

12212012031352 is an abundant number, since it is smaller than the sum of its proper divisors (13957275214568).

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

12212012031352 is a wasteful number, since it uses less digits than its factorization.

12212012031352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5750311 (or 5750307 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 12212012031352 its reverse (25313021021221), we get a palindrome (37525033052573).

The spelling of 12212012031352 in words is "twelve trillion, two hundred twelve billion, twelve million, thirty-one thousand, three hundred fifty-two".

Divisors: 1 2 4 7 8 14 28 56 38177 76354 152708 267239 305416 534478 1068956 2137912 5712121 11424242 22848484 39984847 45696968 79969694 159939388 319878776 218071643417 436143286834 872286573668 1526501503919 1744573147336 3053003007838 6106006015676 12212012031352