22133230500 has 192 divisors, whose sum is σ = 65808288000. Its totient is φ = 5778841600.

The previous prime is 22133230481. The next prime is 22133230541. The reversal of 22133230500 is 503233122.

It is a super-2 number, since 2×22133230500² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39736222 + ... + 39736778.

It is an arithmetic number, because the mean of its divisors is an integer number (342751500).

Almost surely, 2^22133230500 is an apocalyptic number.

22133230500 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 22133230500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32904144000).

22133230500 is an abundant number, since it is smaller than the sum of its proper divisors (43675057500).

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

22133230500 is a wasteful number, since it uses less digits than its factorization.

22133230500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087 (or 1075 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

Adding to 22133230500 its reverse (503233122), we get a palindrome (22636463622).

The spelling of 22133230500 in words is "twenty-two billion, one hundred thirty-three million, two hundred thirty thousand, five hundred".