220402004020 has 24 divisors (see below), whose sum is σ = 504920955168. Its totient is φ = 80146183200.

The previous prime is 220402003999. The next prime is 220402004029. The reversal of 220402004020 is 20400204022.

220402004020 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 = 220402003985 and 220402004003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220402004029) 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, 500913426 + ... + 500913865.

It is an arithmetic number, because the mean of its divisors is an integer number (21038373132).

Almost surely, 2^220402004020 is an apocalyptic number.

220402004020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220402004020 is an abundant number, since it is smaller than the sum of its proper divisors (284518951148).

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

220402004020 is a wasteful number, since it uses less digits than its factorization.

220402004020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001827311 (or 1001827309 counting only the distinct ones).

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

Adding to 220402004020 its reverse (20400204022), we get a palindrome (240802208042).

The spelling of 220402004020 in words is "two hundred twenty billion, four hundred two million, four thousand, twenty".