20020220020420 has 24 divisors (see below), whose sum is σ = 42054382367424. Its totient is φ = 8005817470176.

The previous prime is 20020220020403. The next prime is 20020220020477. The reversal of 20020220020420 is 2402002202002.

It is a junction number, because it is equal to n+sod(n) for n = 20020220020394 and 20020220020403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141836322 + ... + 141977401.

It is an arithmetic number, because the mean of its divisors is an integer number (1752265931976).

Almost surely, 2^{20020220020420} is an apocalyptic number.

20020220020420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020220020420 is an abundant number, since it is smaller than the sum of its proper divisors (22034162347004).

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

20020220020420 is a wasteful number, since it uses less digits than its factorization.

20020220020420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283817259 (or 283817257 counting only the distinct ones).

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

Adding to 20020220020420 its reverse (2402002202002), we get a palindrome (22422222222422).

The spelling of 20020220020420 in words is "twenty trillion, twenty billion, two hundred twenty million, twenty thousand, four hundred twenty".