12220428832 has 12 divisors (see below), whose sum is σ = 24058969326. Its totient is φ = 6110214400.

The previous prime is 12220428827. The next prime is 12220428833. The reversal of 12220428832 is 23882402221.

It can be written as a sum of positive squares in only one way, i.e., 7491941136 + 4728487696 = 86556^2 + 68764^2 .

It is not an unprimeable number, because it can be changed into a prime (12220428833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190944169 + ... + 190944232.

Almost surely, 2^12220428832 is an apocalyptic number.

It is an amenable number.

12220428832 is a deficient number, since it is larger than the sum of its proper divisors (11838540494).

12220428832 is an equidigital number, since it uses as much as digits as its factorization.

12220428832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381888411 (or 381888403 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The spelling of 12220428832 in words is "twelve billion, two hundred twenty million, four hundred twenty-eight thousand, eight hundred thirty-two".