20441331220 has 24 divisors (see below), whose sum is σ = 43190157024. Its totient is φ = 8126368416.

The previous prime is 20441331193. The next prime is 20441331257. The reversal of 20441331220 is 2213314402.

It is a junction number, because it is equal to n+sod(n) for n = 20441331191 and 20441331200.

It is a congruent number.

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, 3131914 + ... + 3138433.

It is an arithmetic number, because the mean of its divisors is an integer number (1799589876).

Almost surely, 2^20441331220 is an apocalyptic number.

20441331220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20441331220 is an abundant number, since it is smaller than the sum of its proper divisors (22748825804).

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

20441331220 is a wasteful number, since it uses less digits than its factorization.

20441331220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6270519 (or 6270517 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20441331220 its reverse (2213314402), we get a palindrome (22654645622).

The spelling of 20441331220 in words is "twenty billion, four hundred forty-one million, three hundred thirty-one thousand, two hundred twenty".