122550245009 has 2 divisors, whose sum is σ = 122550245010. Its totient is φ = 122550245008.

The previous prime is 122550245003. The next prime is 122550245033. The reversal of 122550245009 is 900542055221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105329457025 + 17220787984 = 324545^2 + 131228^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122550245009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122550245009.

It is not a weakly prime, because it can be changed into another prime (122550245003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61275122504 + 61275122505.

It is an arithmetic number, because the mean of its divisors is an integer number (61275122505).

Almost surely, 2^122550245009 is an apocalyptic number.

It is an amenable number.

122550245009 is a deficient number, since it is larger than the sum of its proper divisors (1).

122550245009 is an equidigital number, since it uses as much as digits as its factorization.

122550245009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 122550245009 in words is "one hundred twenty-two billion, five hundred fifty million, two hundred forty-five thousand, nine".