122505201305 has 4 divisors (see below), whose sum is σ = 147006241572. Its totient is φ = 98004161040.

The previous prime is 122505201241. The next prime is 122505201311. The reversal of 122505201305 is 503102505221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24744548416 + 97760652889 = 157304^2 + 312667^2 .

It is not a de Polignac number, because 122505201305 - 2⁶ = 122505201241 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12250520126 + ... + 12250520135.

It is an arithmetic number, because the mean of its divisors is an integer number (36751560393).

Almost surely, 2^122505201305 is an apocalyptic number.

It is an amenable number.

122505201305 is a deficient number, since it is larger than the sum of its proper divisors (24501040267).

122505201305 is an equidigital number, since it uses as much as digits as its factorization.

122505201305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24501040266.

The product of its (nonzero) digits is 3000, while the sum is 26.

Adding to 122505201305 its reverse (503102505221), we get a palindrome (625607706526).

The spelling of 122505201305 in words is "one hundred twenty-two billion, five hundred five million, two hundred one thousand, three hundred five".