22321404504340 has 96 divisors (see below), whose sum is σ = 48396245990400. Its totient is φ = 8641386270720.

The previous prime is 22321404504241. The next prime is 22321404504359. The reversal of 22321404504340 is 4340540412322.

It is a super-3 number, since 3×22321404504340³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22321404504296 and 22321404504305.

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, 294910621 + ... + 294986299.

It is an arithmetic number, because the mean of its divisors is an integer number (504127562400).

Almost surely, 2^{22321404504340} is an apocalyptic number.

22321404504340 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 22321404504340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24198122995200).

22321404504340 is an abundant number, since it is smaller than the sum of its proper divisors (26074841486060).

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

22321404504340 is a wasteful number, since it uses less digits than its factorization.

22321404504340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77825 (or 77823 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 34.

Adding to 22321404504340 its reverse (4340540412322), we get a palindrome (26661944916662).

The spelling of 22321404504340 in words is "twenty-two trillion, three hundred twenty-one billion, four hundred four million, five hundred four thousand, three hundred forty".