220423120420 has 24 divisors (see below), whose sum is σ = 463942987200. Its totient is φ = 87968403552.

The previous prime is 220423120417. The next prime is 220423120427. The reversal of 220423120420 is 24021324022.

220423120420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 220423120391 and 220423120400.

It is not an unprimeable number, because it can be changed into a prime (220423120427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12543790 + ... + 12561349.

It is an arithmetic number, because the mean of its divisors is an integer number (19330957800).

Almost surely, 2^220423120420 is an apocalyptic number.

220423120420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220423120420 is an abundant number, since it is smaller than the sum of its proper divisors (243519866780).

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

220423120420 is a wasteful number, since it uses less digits than its factorization.

220423120420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25105587 (or 25105585 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 220423120420 its reverse (24021324022), we get a palindrome (244444444442).

The spelling of 220423120420 in words is "two hundred twenty billion, four hundred twenty-three million, one hundred twenty thousand, four hundred twenty".