122423404225 has 12 divisors (see below), whose sum is σ = 151809401260. Its totient is φ = 97935897600.

The previous prime is 122423404217. The next prime is 122423404237. The reversal of 122423404225 is 522404324221.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 12385909264 + 110037494961 = 111292^2 + 331719^2 .

It is not a de Polignac number, because 122423404225 - 2³ = 122423404217 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1483861 + ... + 1564189.

Almost surely, 2^122423404225 is an apocalyptic number.

It is an amenable number.

122423404225 is a deficient number, since it is larger than the sum of its proper divisors (29385997035).

122423404225 is an equidigital number, since it uses as much as digits as its factorization.

122423404225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141300 (or 141295 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 122423404225 its reverse (522404324221), we get a palindrome (644827728446).

The spelling of 122423404225 in words is "one hundred twenty-two billion, four hundred twenty-three million, four hundred four thousand, two hundred twenty-five".