12220330224 has 20 divisors (see below), whose sum is σ = 31569186536. Its totient is φ = 4073443392.

The previous prime is 12220330193. The next prime is 12220330273. The reversal of 12220330224 is 42203302221.

It is a self number, because there is not a number n which added to its sum of digits gives 12220330224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127295059 + ... + 127295154.

Almost surely, 2^12220330224 is an apocalyptic number.

It is an amenable number.

12220330224 is an abundant number, since it is smaller than the sum of its proper divisors (19348856312).

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

12220330224 is a wasteful number, since it uses less digits than its factorization.

12220330224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254590224 (or 254590218 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 12220330224 its reverse (42203302221), we get a palindrome (54423632445).

The spelling of 12220330224 in words is "twelve billion, two hundred twenty million, three hundred thirty thousand, two hundred twenty-four".