20020420440220 has 24 divisors (see below), whose sum is σ = 42048080802000. Its totient is φ = 8007178104192.

The previous prime is 20020420440199. The next prime is 20020420440227. The reversal of 20020420440220 is 2204402402002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20020420440191 and 20020420440200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020420440227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61713670 + ... + 62037229.

It is an arithmetic number, because the mean of its divisors is an integer number (1752003366750).

Almost surely, 2^{20020420440220} is an apocalyptic number.

20020420440220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020420440220 is an abundant number, since it is smaller than the sum of its proper divisors (22027660361780).

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

20020420440220 is a wasteful number, since it uses less digits than its factorization.

20020420440220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123758997 (or 123758995 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 20020420440220 its reverse (2204402402002), we get a palindrome (22224822842222).

The spelling of 20020420440220 in words is "twenty trillion, twenty billion, four hundred twenty million, four hundred forty thousand, two hundred twenty".