22020125420 has 24 divisors (see below), whose sum is σ = 47317666704. Its totient is φ = 8603211456.

The previous prime is 22020125383. The next prime is 22020125441. The reversal of 22020125420 is 2452102022.

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 = 22020125392 and 22020125401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12801539 + ... + 12803258.

It is an arithmetic number, because the mean of its divisors is an integer number (1971569446).

Almost surely, 2^22020125420 is an apocalyptic number.

22020125420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22020125420 is an abundant number, since it is smaller than the sum of its proper divisors (25297541284).

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

22020125420 is a wasteful number, since it uses less digits than its factorization.

22020125420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25604849 (or 25604847 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 22020125420 its reverse (2452102022), we get a palindrome (24472227442).

The spelling of 22020125420 in words is "twenty-two billion, twenty million, one hundred twenty-five thousand, four hundred twenty".