20020002020 has 24 divisors (see below), whose sum is σ = 42108658368. Its totient is φ = 7995304800.

The previous prime is 20020002017. The next prime is 20020002097. The reversal of 20020002020 is 2020002002.

It is a junction number, because it is equal to n+sod(n) for n = 20020001989 and 20020002007.

It is an unprimeable number.

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, 780566 + ... + 805805.

It is an arithmetic number, because the mean of its divisors is an integer number (1754527432).

Almost surely, 2^20020002020 is an apocalyptic number.

20020002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020002020 is an abundant number, since it is smaller than the sum of its proper divisors (22088656348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20020002020 is a wasteful number, since it uses less digits than its factorization.

20020002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587011 (or 1587009 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

Adding to 20020002020 its reverse (2020002002), we get a palindrome (22040004022).

The spelling of 20020002020 in words is "twenty billion, twenty million, two thousand, twenty".