122439250961 has 2 divisors, whose sum is σ = 122439250962. Its totient is φ = 122439250960.

The previous prime is 122439250931. The next prime is 122439250981. The reversal of 122439250961 is 169052934221.

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., 69290559361 + 53148691600 = 263231^2 + 230540^2 .

It is an emirp because it is prime and its reverse (169052934221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122439250961 - 2⁶ = 122439250897 is a prime.

It is not a weakly prime, because it can be changed into another prime (122439250931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61219625480 + 61219625481.

It is an arithmetic number, because the mean of its divisors is an integer number (61219625481).

Almost surely, 2^122439250961 is an apocalyptic number.

It is an amenable number.

122439250961 is a deficient number, since it is larger than the sum of its proper divisors (1).

122439250961 is an equidigital number, since it uses as much as digits as its factorization.

122439250961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 122439250961 in words is "one hundred twenty-two billion, four hundred thirty-nine million, two hundred fifty thousand, nine hundred sixty-one".