20422042141 has 4 divisors (see below), whose sum is σ = 20439335484. Its totient is φ = 20404748800.

The previous prime is 20422042139. The next prime is 20422042163. The reversal of 20422042141 is 14124022402.

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 14311336900 + 6110705241 = 119630^2 + 78171^2 .

It is a cyclic number.

It is not a de Polignac number, because 20422042141 - 2¹ = 20422042139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20422042111) 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 3 ways as a sum of consecutive naturals, for example, 8644900 + ... + 8647261.

It is an arithmetic number, because the mean of its divisors is an integer number (5109833871).

Almost surely, 2^20422042141 is an apocalyptic number.

It is an amenable number.

20422042141 is a deficient number, since it is larger than the sum of its proper divisors (17293343).

20422042141 is a wasteful number, since it uses less digits than its factorization.

20422042141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17293342.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 20422042141 its reverse (14124022402), we get a palindrome (34546064543).

The spelling of 20422042141 in words is "twenty billion, four hundred twenty-two million, forty-two thousand, one hundred forty-one".