20432402210220 has 768 divisors, whose sum is σ = 79796886994944. Its totient is φ = 3769629696000.

The previous prime is 20432402210197. The next prime is 20432402210251. The reversal of 20432402210220 is 2201220423402.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 174776227 + ... + 174893093.

It is an arithmetic number, because the mean of its divisors is an integer number (103902196608).

Almost surely, 2^{20432402210220} is an apocalyptic number.

20432402210220 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 20432402210220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39898443497472).

20432402210220 is an abundant number, since it is smaller than the sum of its proper divisors (59364484784724).

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

20432402210220 is a wasteful number, since it uses less digits than its factorization.

20432402210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117022 (or 117020 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20432402210220 its reverse (2201220423402), we get a palindrome (22633622633622).

The spelling of 20432402210220 in words is "twenty trillion, four hundred thirty-two billion, four hundred two million, two hundred ten thousand, two hundred twenty".