22221233232 has 80 divisors (see below), whose sum is σ = 63650182080. Its totient is φ = 6623308800.

The previous prime is 22221233201. The next prime is 22221233261. The reversal of 22221233232 is 23233212222.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312757 + ... + 377172.

It is an arithmetic number, because the mean of its divisors is an integer number (795627276).

Almost surely, 2^22221233232 is an apocalyptic number.

22221233232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22221233232 is an abundant number, since it is smaller than the sum of its proper divisors (41428948848).

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

22221233232 is a wasteful number, since it uses less digits than its factorization.

22221233232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690012 (or 690006 counting only the distinct ones).

The product of its digits is 3456, while the sum is 24.

Adding to 22221233232 its reverse (23233212222), we get a palindrome (45454445454).

The spelling of 22221233232 in words is "twenty-two billion, two hundred twenty-one million, two hundred thirty-three thousand, two hundred thirty-two".