21322320221120 has 28 divisors (see below), whose sum is σ = 50773775027304. Its totient is φ = 8528928088320.

The previous prime is 21322320221089. The next prime is 21322320221131. The reversal of 21322320221120 is 2112202322312.

It is a happy number.

It is a super-2 number, since 2×21322320221120² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33316125026 + ... + 33316125665.

It is an arithmetic number, because the mean of its divisors is an integer number (1813349108118).

Almost surely, 2^{21322320221120} is an apocalyptic number.

21322320221120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21322320221120 is an abundant number, since it is smaller than the sum of its proper divisors (29451454806184).

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

21322320221120 is an equidigital number, since it uses as much as digits as its factorization.

21322320221120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66632250708 (or 66632250698 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21322320221120 its reverse (2112202322312), we get a palindrome (23434522543432).

The spelling of 21322320221120 in words is "twenty-one trillion, three hundred twenty-two billion, three hundred twenty million, two hundred twenty-one thousand, one hundred twenty".