122353125205 has 4 divisors (see below), whose sum is σ = 146823750252. Its totient is φ = 97882500160.

The previous prime is 122353125187. The next prime is 122353125227. The reversal of 122353125205 is 502521353221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 502521353221 = 823 ⋅610597027.

It can be written as a sum of positive squares in 2 ways, for example, as 82816177284 + 39536947921 = 287778^2 + 198839^2 .

It is not a de Polignac number, because 122353125205 - 2¹⁹ = 122352600917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12235312516 + ... + 12235312525.

It is an arithmetic number, because the mean of its divisors is an integer number (36705937563).

Almost surely, 2^122353125205 is an apocalyptic number.

It is an amenable number.

122353125205 is a deficient number, since it is larger than the sum of its proper divisors (24470625047).

122353125205 is an equidigital number, since it uses as much as digits as its factorization.

122353125205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24470625046.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 122353125205 its reverse (502521353221), we get a palindrome (624874478426).

The spelling of 122353125205 in words is "one hundred twenty-two billion, three hundred fifty-three million, one hundred twenty-five thousand, two hundred five".