220405460122 has 16 divisors (see below), whose sum is σ = 351047409192. Its totient is φ = 103426385920.

The previous prime is 220405460059. The next prime is 220405460129. The reversal of 220405460122 is 221064504022.

It can be written as a sum of positive squares in 4 ways, for example, as 136797159321 + 83608300801 = 369861^2 + 289151^2 .

It is not an unprimeable number, because it can be changed into a prime (220405460129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9170029 + ... + 9194032.

Almost surely, 2^220405460122 is an apocalyptic number.

220405460122 is a deficient number, since it is larger than the sum of its proper divisors (130641949070).

220405460122 is a wasteful number, since it uses less digits than its factorization.

220405460122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18364433.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 220405460122 its reverse (221064504022), we get a palindrome (441469964144).

The spelling of 220405460122 in words is "two hundred twenty billion, four hundred five million, four hundred sixty thousand, one hundred twenty-two".