122345421577 has 2 divisors, whose sum is σ = 122345421578. Its totient is φ = 122345421576.

The previous prime is 122345421461. The next prime is 122345421613. The reversal of 122345421577 is 775124543221.

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., 99035460601 + 23309960976 = 314699^2 + 152676^2 .

It is a cyclic number.

It is not a de Polignac number, because 122345421577 - 2¹¹ = 122345419529 is a prime.

It is not a weakly prime, because it can be changed into another prime (122345421977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61172710788 + 61172710789.

It is an arithmetic number, because the mean of its divisors is an integer number (61172710789).

Almost surely, 2^122345421577 is an apocalyptic number.

It is an amenable number.

122345421577 is a deficient number, since it is larger than the sum of its proper divisors (1).

122345421577 is an equidigital number, since it uses as much as digits as its factorization.

122345421577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 470400, while the sum is 43.

Adding to 122345421577 its reverse (775124543221), we get a palindrome (897469964798).

The spelling of 122345421577 in words is "one hundred twenty-two billion, three hundred forty-five million, four hundred twenty-one thousand, five hundred seventy-seven".