20020044220 has 48 divisors (see below), whose sum is σ = 48561998688. Its totient is φ = 6851778560.

The previous prime is 20020044217. The next prime is 20020044263. The reversal of 20020044220 is 2244002002.

It is a junction number, because it is equal to n+sod(n) for n = 20020044194 and 20020044203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2672737 + ... + 2680216.

It is an arithmetic number, because the mean of its divisors is an integer number (1011708306).

Almost surely, 2^20020044220 is an apocalyptic number.

20020044220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020044220 is an abundant number, since it is smaller than the sum of its proper divisors (28541954468).

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

20020044220 is a wasteful number, since it uses less digits than its factorization.

20020044220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5352990 (or 5352988 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 20020044220 its reverse (2244002002), we get a palindrome (22264046222).

The spelling of 20020044220 in words is "twenty billion, twenty million, forty-four thousand, two hundred twenty".