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706122111022121 is a prime number
BaseRepresentation
bin1010000010001101101101110…
…1100110000111010000101001
310102121011121121000011220100002
42200203123131212013100221
51220023101040410201441
610541444004121152345
7301506432113460503
oct24043333546072051
93377147530156302
10706122111022121
11194aa0784119872
126724324232b6b5
132440104c646721
14c6526c76d0d73
hex28236dd987429

706122111022121 has 2 divisors, whose sum is σ = 706122111022122. Its totient is φ = 706122111022120.

The previous prime is 706122111022061. The next prime is 706122111022123. The reversal of 706122111022121 is 121220111221607.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 547539595390096 + 158582515632025 = 23399564^2 + 12592955^2 .

It is an emirp because it is prime and its reverse (121220111221607) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 706122111022121 - 210 = 706122111021097 is a prime.

Together with 706122111022123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (706122111022123) 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 as a sum of consecutive naturals, namely, 353061055511060 + 353061055511061.

It is an arithmetic number, because the mean of its divisors is an integer number (353061055511061).

Almost surely, 2706122111022121 is an apocalyptic number.

It is an amenable number.

706122111022121 is a deficient number, since it is larger than the sum of its proper divisors (1).

706122111022121 is an equidigital number, since it uses as much as digits as its factorization.

706122111022121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 29.

Adding to 706122111022121 its reverse (121220111221607), we get a palindrome (827342222243728).

The spelling of 706122111022121 in words is "seven hundred six trillion, one hundred twenty-two billion, one hundred eleven million, twenty-two thousand, one hundred twenty-one".