122115545249 has 2 divisors, whose sum is σ = 122115545250. Its totient is φ = 122115545248.

The previous prime is 122115545161. The next prime is 122115545257. The reversal of 122115545249 is 942545511221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66987792400 + 55127752849 = 258820^2 + 234793^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122115545249 is a prime.

It is not a weakly prime, because it can be changed into another prime (122115545269) 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 as a sum of consecutive naturals, namely, 61057772624 + 61057772625.

It is an arithmetic number, because the mean of its divisors is an integer number (61057772625).

Almost surely, 2^122115545249 is an apocalyptic number.

It is an amenable number.

122115545249 is a deficient number, since it is larger than the sum of its proper divisors (1).

122115545249 is an equidigital number, since it uses as much as digits as its factorization.

122115545249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144000, while the sum is 41.

The spelling of 122115545249 in words is "one hundred twenty-two billion, one hundred fifteen million, five hundred forty-five thousand, two hundred forty-nine".