20223104420 has 24 divisors (see below), whose sum is σ = 42471697464. Its totient is φ = 8088636416.

The previous prime is 20223104413. The next prime is 20223104449. The reversal of 20223104420 is 2440132202.

It can be written as a sum of positive squares in 4 ways, for example, as 2623898176 + 17599206244 = 51224^2 + 132662^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20223104392 and 20223104401.

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, 317492 + ... + 375828.

It is an arithmetic number, because the mean of its divisors is an integer number (1769654061).

Almost surely, 2^20223104420 is an apocalyptic number.

20223104420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20223104420 is an abundant number, since it is smaller than the sum of its proper divisors (22248593044).

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

20223104420 is a wasteful number, since it uses less digits than its factorization.

20223104420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75679 (or 75677 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20223104420 its reverse (2440132202), we get a palindrome (22663236622).

The spelling of 20223104420 in words is "twenty billion, two hundred twenty-three million, one hundred four thousand, four hundred twenty".