22032321000 has 192 divisors, whose sum is σ = 71864694720. Its totient is φ = 5619433600.

The previous prime is 22032320953. The next prime is 22032321007. The reversal of 22032321000 is 12323022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (22032321007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1580059 + ... + 1593941.

It is an arithmetic number, because the mean of its divisors is an integer number (374295285).

Almost surely, 2^22032321000 is an apocalyptic number.

22032321000 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 22032321000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35932347360).

22032321000 is an abundant number, since it is smaller than the sum of its proper divisors (49832373720).

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

22032321000 is a wasteful number, since it uses less digits than its factorization.

22032321000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13953 (or 13916 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 22032321000 its reverse (12323022), we get a palindrome (22044644022).

The spelling of 22032321000 in words is "twenty-two billion, thirty-two million, three hundred twenty-one thousand".