22132221232 has 20 divisors (see below), whose sum is σ = 46779467976. Its totient is φ = 10060100480.

The previous prime is 22132221229. The next prime is 22132221233. The reversal of 22132221232 is 23212223122.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (22132221233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62875453 + ... + 62875804.

Almost surely, 2^22132221232 is an apocalyptic number.

22132221232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22132221232 is an abundant number, since it is smaller than the sum of its proper divisors (24647246744).

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

22132221232 is a wasteful number, since it uses less digits than its factorization.

22132221232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125751276 (or 125751270 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

Adding to 22132221232 its reverse (23212223122), we get a palindrome (45344444354).

The spelling of 22132221232 in words is "twenty-two billion, one hundred thirty-two million, two hundred twenty-one thousand, two hundred thirty-two".