22133213504 has 56 divisors (see below), whose sum is σ = 44397582528. Its totient is φ = 10946672640.

The previous prime is 22133213503. The next prime is 22133213533. The reversal of 22133213504 is 40531233122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22133213503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8970479 + ... + 8972945.

Almost surely, 2^22133213504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22133213504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22198791264).

22133213504 is an abundant number, since it is smaller than the sum of its proper divisors (22264369024).

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

22133213504 is a wasteful number, since it uses less digits than its factorization.

22133213504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3943 (or 3933 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 22133213504 its reverse (40531233122), we get a palindrome (62664446626).

The spelling of 22133213504 in words is "twenty-two billion, one hundred thirty-three million, two hundred thirteen thousand, five hundred four".