22020311320 has 256 divisors, whose sum is σ = 61594214400. Its totient is φ = 6918912000.

The previous prime is 22020311317. The next prime is 22020311333. The reversal of 22020311320 is 2311302022.

It is a super-2 number, since 2×22020311320² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22020311294 and 22020311303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29320945 + ... + 29321695.

It is an arithmetic number, because the mean of its divisors is an integer number (240602400).

Almost surely, 2^22020311320 is an apocalyptic number.

22020311320 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 22020311320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30797107200).

22020311320 is an abundant number, since it is smaller than the sum of its proper divisors (39573903080).

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

22020311320 is a wasteful number, since it uses less digits than its factorization.

22020311320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978 (or 974 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 22020311320 its reverse (2311302022), we get a palindrome (24331613342).

The spelling of 22020311320 in words is "twenty-two billion, twenty million, three hundred eleven thousand, three hundred twenty".