20204200024220 has 48 divisors (see below), whose sum is σ = 43340106015360. Its totient is φ = 7908169549824.

The previous prime is 20204200024219. The next prime is 20204200024237. The reversal of 20204200024220 is 2242000240202.

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 = 20204200024192 and 20204200024201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2655596 + ... + 6889164.

It is an arithmetic number, because the mean of its divisors is an integer number (902918875320).

Almost surely, 2^{20204200024220} is an apocalyptic number.

20204200024220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20204200024220 is an abundant number, since it is smaller than the sum of its proper divisors (23135905991140).

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

20204200024220 is a wasteful number, since it uses less digits than its factorization.

20204200024220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4238702 (or 4238700 counting only the distinct ones).

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

Adding to 20204200024220 its reverse (2242000240202), we get a palindrome (22446200264422).

The spelling of 20204200024220 in words is "twenty trillion, two hundred four billion, two hundred million, twenty-four thousand, two hundred twenty".