20024222004020 has 24 divisors (see below), whose sum is σ = 45285548225064. Its totient is φ = 7393558893696.

The previous prime is 20024222003939. The next prime is 20024222004029. The reversal of 20024222004020 is 2040022242002.

It can be written as a sum of positive squares in 4 ways, for example, as 76868671504 + 19947353332516 = 277252^2 + 4466246^2 .

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 = 20024222003983 and 20024222004001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20024222004029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38508118979 + ... + 38508119498.

It is an arithmetic number, because the mean of its divisors is an integer number (1886897842711).

Almost surely, 2^{20024222004020} is an apocalyptic number.

20024222004020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20024222004020 is an abundant number, since it is smaller than the sum of its proper divisors (25261326221044).

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

20024222004020 is a wasteful number, since it uses less digits than its factorization.

20024222004020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77016238499 (or 77016238497 counting only the distinct ones).

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

Adding to 20024222004020 its reverse (2040022242002), we get a palindrome (22064244246022).

The spelling of 20024222004020 in words is "twenty trillion, twenty-four billion, two hundred twenty-two million, four thousand, twenty".