220040002020 has 48 divisors (see below), whose sum is σ = 617973427008. Its totient is φ = 58500055680.

The previous prime is 220040001931. The next prime is 220040002043. The reversal of 220040002020 is 20200040022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 220040001987 and 220040002005.

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, 5519919 + ... + 5559638.

It is an arithmetic number, because the mean of its divisors is an integer number (12874446396).

Almost surely, 2^220040002020 is an apocalyptic number.

220040002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220040002020 is an abundant number, since it is smaller than the sum of its proper divisors (397933424988).

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

220040002020 is a wasteful number, since it uses less digits than its factorization.

220040002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11079900 (or 11079898 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

Adding to 220040002020 its reverse (20200040022), we get a palindrome (240240042042).

The spelling of 220040002020 in words is "two hundred twenty billion, forty million, two thousand, twenty".