20020220005 has 4 divisors (see below), whose sum is σ = 24024264012. Its totient is φ = 16016176000.

The previous prime is 20020219931. The next prime is 20020220023. The reversal of 20020220005 is 50002202002.

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 12547136196 + 7473083809 = 112014^2 + 86447^2 .

It is not a de Polignac number, because 20020220005 - 2¹⁵ = 20020187237 is a prime.

It is a Duffinian number.

It is a congruent 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, 2002021996 + ... + 2002022005.

It is an arithmetic number, because the mean of its divisors is an integer number (6006066003).

Almost surely, 2^20020220005 is an apocalyptic number.

It is an amenable number.

20020220005 is a deficient number, since it is larger than the sum of its proper divisors (4004044007).

20020220005 is an equidigital number, since it uses as much as digits as its factorization.

20020220005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4004044006.

The product of its (nonzero) digits is 80, while the sum is 13.

Adding to 20020220005 its reverse (50002202002), we get a palindrome (70022422007).

The spelling of 20020220005 in words is "twenty billion, twenty million, two hundred twenty thousand, five".