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12122042241 = 34040680747
BaseRepresentation
bin10110100101000011…
…11010111110000001
31011021210202112211110
423102201322332001
5144311220322431
65322505233533
7606252442011
oct132241727601
934253675743
1012122042241
115160638831
1224237928a9
1311b252517a
1482dd09c41
154ae32b346
hex2d287af81

12122042241 has 4 divisors (see below), whose sum is σ = 16162722992. Its totient is φ = 8081361492.

The previous prime is 12122042227. The next prime is 12122042269. The reversal of 12122042241 is 14224022121.

12122042241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14224022121 = 34741340707.

It is not a de Polignac number, because 12122042241 - 219 = 12121517953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12122042221) by changing a digit.

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, 2020340371 + ... + 2020340376.

It is an arithmetic number, because the mean of its divisors is an integer number (4040680748).

Almost surely, 212122042241 is an apocalyptic number.

It is an amenable number.

12122042241 is a deficient number, since it is larger than the sum of its proper divisors (4040680751).

12122042241 is an equidigital number, since it uses as much as digits as its factorization.

12122042241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4040680750.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 12122042241 its reverse (14224022121), we get a palindrome (26346064362).

The spelling of 12122042241 in words is "twelve billion, one hundred twenty-two million, forty-two thousand, two hundred forty-one".

Divisors: 1 3 4040680747 12122042241