204220040441020 has 96 divisors (see below), whose sum is σ = 448390623320640. Its totient is φ = 78060380037120.

The previous prime is 204220040441017. The next prime is 204220040441059. The reversal of 204220040441020 is 20144040022402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1455915 + ... + 20262274.

It is an arithmetic number, because the mean of its divisors is an integer number (4670735659590).

Almost surely, 2^{204220040441020} is an apocalyptic number.

204220040441020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204220040441020 is an abundant number, since it is smaller than the sum of its proper divisors (244170582879620).

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

204220040441020 is a wasteful number, since it uses less digits than its factorization.

204220040441020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21718463 (or 21718461 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 204220040441020 its reverse (20144040022402), we get a palindrome (224364080463422).

The spelling of 204220040441020 in words is "two hundred four trillion, two hundred twenty billion, forty million, four hundred forty-one thousand, twenty".