22031322000 has 160 divisors (see below), whose sum is σ = 71114734080. Its totient is φ = 5867929600.

The previous prime is 22031321909. The next prime is 22031322029. The reversal of 22031322000 is 22313022.

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

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, 6616336 + ... + 6619664.

It is an arithmetic number, because the mean of its divisors is an integer number (444467088).

Almost surely, 2^22031322000 is an apocalyptic number.

22031322000 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 22031322000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35557367040).

22031322000 is an abundant number, since it is smaller than the sum of its proper divisors (49083412080).

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

22031322000 is a wasteful number, since it uses less digits than its factorization.

22031322000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4458 (or 4442 counting only the distinct ones).

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

Adding to 22031322000 its reverse (22313022), we get a palindrome (22053635022).

The spelling of 22031322000 in words is "twenty-two billion, thirty-one million, three hundred twenty-two thousand".