20422244305 has 4 divisors (see below), whose sum is σ = 24506693172. Its totient is φ = 16337795440.

The previous prime is 20422244287. The next prime is 20422244321. The reversal of 20422244305 is 50344222402.

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 8959758336 + 11462485969 = 94656^2 + 107063^2 .

It is not a de Polignac number, because 20422244305 - 2¹¹ = 20422242257 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, 2042224426 + ... + 2042224435.

It is an arithmetic number, because the mean of its divisors is an integer number (6126673293).

Almost surely, 2^20422244305 is an apocalyptic number.

It is an amenable number.

20422244305 is a deficient number, since it is larger than the sum of its proper divisors (4084448867).

20422244305 is an equidigital number, since it uses as much as digits as its factorization.

20422244305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4084448866.

The product of its (nonzero) digits is 15360, while the sum is 28.

Adding to 20422244305 its reverse (50344222402), we get a palindrome (70766466707).

The spelling of 20422244305 in words is "twenty billion, four hundred twenty-two million, two hundred forty-four thousand, three hundred five".