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12212515434241 is a prime number
BaseRepresentation
bin1011000110110111001010…
…1001001110111100000001
31121020111122012100201111101
42301231302221032330001
53100042212422343431
641550204021214401
72400216342262003
oct261556251167401
947214565321441
1012212515434241
113989331645a91
121452a4a861401
136a78348a0845
14303135d30373
15162a1eecb961
hexb1b72a4ef01

12212515434241 has 2 divisors, whose sum is σ = 12212515434242. Its totient is φ = 12212515434240.

The previous prime is 12212515434221. The next prime is 12212515434247. The reversal of 12212515434241 is 14243451521221.

12212515434241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9379083875841 + 2833431558400 = 3062529^2 + 1683280^2 .

It is a cyclic number.

It is not a de Polignac number, because 12212515434241 - 25 = 12212515434209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12212515434241.

It is not a weakly prime, because it can be changed into another prime (12212515434247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106257717120 + 6106257717121.

It is an arithmetic number, because the mean of its divisors is an integer number (6106257717121).

Almost surely, 212212515434241 is an apocalyptic number.

It is an amenable number.

12212515434241 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212515434241 is an equidigital number, since it uses as much as digits as its factorization.

12212515434241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 76800, while the sum is 37.

Adding to 12212515434241 its reverse (14243451521221), we get a palindrome (26455966955462).

The spelling of 12212515434241 in words is "twelve trillion, two hundred twelve billion, five hundred fifteen million, four hundred thirty-four thousand, two hundred forty-one".