12221232104 has 8 divisors (see below), whose sum is σ = 22914810210. Its totient is φ = 6110616048.

The previous prime is 12221232097. The next prime is 12221232197. The reversal of 12221232104 is 40123212221.

12221232104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10267768900 + 1953463204 = 101330^2 + 44198^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 763826999 + ... + 763827014.

Almost surely, 2^12221232104 is an apocalyptic number.

It is an amenable number.

12221232104 is a deficient number, since it is larger than the sum of its proper divisors (10693578106).

12221232104 is a wasteful number, since it uses less digits than its factorization.

12221232104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527654019 (or 1527654015 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12221232104 its reverse (40123212221), we get a palindrome (52344444325).

The spelling of 12221232104 in words is "twelve billion, two hundred twenty-one million, two hundred thirty-two thousand, one hundred four".