22020423504320 has 112 divisors (see below), whose sum is σ = 53207442528768. Its totient is φ = 8678758609920.

The previous prime is 22020423504257. The next prime is 22020423504329. The reversal of 22020423504320 is 2340532402022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020423504329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36667589 + ... + 37263291.

Almost surely, 2^{22020423504320} is an apocalyptic number.

22020423504320 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 22020423504320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26603721264384).

22020423504320 is an abundant number, since it is smaller than the sum of its proper divisors (31187019024448).

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

22020423504320 is a wasteful number, since it uses less digits than its factorization.

22020423504320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597418 (or 597408 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 29.

Adding to 22020423504320 its reverse (2340532402022), we get a palindrome (24360955906342).

The spelling of 22020423504320 in words is "twenty-two trillion, twenty billion, four hundred twenty-three million, five hundred four thousand, three hundred twenty".