122203405 has 4 divisors (see below), whose sum is σ = 146644092. Its totient is φ = 97762720.

The previous prime is 122203391. The next prime is 122203453. The reversal of 122203405 is 504302221.

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 42029289 + 80174116 = 6483^2 + 8954^2 .

It is not a de Polignac number, because 122203405 - 2⁵ = 122203373 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12220336 + ... + 12220345.

It is an arithmetic number, because the mean of its divisors is an integer number (36661023).

Almost surely, 2^122203405 is an apocalyptic number.

It is an amenable number.

122203405 is a deficient number, since it is larger than the sum of its proper divisors (24440687).

122203405 is an equidigital number, since it uses as much as digits as its factorization.

122203405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24440686.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 122203405 is about 11054.5648941964. The cubic root of 122203405 is about 496.2430479942.

Adding to 122203405 its reverse (504302221), we get a palindrome (626505626).

It can be divided in two parts, 12220 and 3405, that added together give a 6-th power (15625 = 5⁶).

The spelling of 122203405 in words is "one hundred twenty-two million, two hundred three thousand, four hundred five".