20220224420 has 96 divisors (see below), whose sum is σ = 46858331520. Its totient is φ = 7268106240.

The previous prime is 20220224389. The next prime is 20220224443. The reversal of 20220224420 is 2442202202.

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 = 20220224392 and 20220224401.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18101702 + ... + 18102818.

It is an arithmetic number, because the mean of its divisors is an integer number (488107620).

Almost surely, 2^20220224420 is an apocalyptic number.

20220224420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20220224420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23429165760).

20220224420 is an abundant number, since it is smaller than the sum of its proper divisors (26638107100).

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

20220224420 is a wasteful number, since it uses less digits than its factorization.

20220224420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2013 (or 2011 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 20220224420 its reverse (2442202202), we get a palindrome (22662426622).

It can be divided in two parts, 202202 and 24420, that added together give a palindrome (226622).

The spelling of 20220224420 in words is "twenty billion, two hundred twenty million, two hundred twenty-four thousand, four hundred twenty".