20022404443220 has 96 divisors (see below), whose sum is σ = 44722115891712. Its totient is φ = 7503702652928.

The previous prime is 20022404443199. The next prime is 20022404443231. The reversal of 20022404443220 is 2234440422002.

It is a congruent number.

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, 1115010482 + ... + 1115028438.

It is an arithmetic number, because the mean of its divisors is an integer number (465855373872).

Almost surely, 2^{20022404443220} is an apocalyptic number.

20022404443220 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 20022404443220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22361057945856).

20022404443220 is an abundant number, since it is smaller than the sum of its proper divisors (24699711448492).

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

20022404443220 is a wasteful number, since it uses less digits than its factorization.

20022404443220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32657 (or 32655 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 29.

Adding to 20022404443220 its reverse (2234440422002), we get a palindrome (22256844865222).

The spelling of 20022404443220 in words is "twenty trillion, twenty-two billion, four hundred four million, four hundred forty-three thousand, two hundred twenty".