20020200020 has 48 divisors (see below), whose sum is σ = 42172733568. Its totient is φ = 7983308160.

The previous prime is 20020199981. The next prime is 20020200023. The reversal of 20020200020 is 2000202002.

It is a junction number, because it is equal to n+sod(n) for n = 20020199980 and 20020200007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020200023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13834937 + ... + 13836383.

It is an arithmetic number, because the mean of its divisors is an integer number (878598616).

Almost surely, 2^20020200020 is an apocalyptic number.

20020200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020200020 is an abundant number, since it is smaller than the sum of its proper divisors (22152533548).

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

20020200020 is a wasteful number, since it uses less digits than its factorization.

20020200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3120 (or 3118 counting only the distinct ones).

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

Adding to 20020200020 its reverse (2000202002), we get a palindrome (22020402022).

The spelling of 20020200020 in words is "twenty billion, twenty million, two hundred thousand, twenty".