12213120232 has 16 divisors (see below), whose sum is σ = 23135680260. Its totient is φ = 6043605504.

The previous prime is 12213120197. The next prime is 12213120289. The reversal of 12213120232 is 23202131221.

It can be written as a sum of positive squares in 2 ways, for example, as 11441725156 + 771395076 = 106966^2 + 27774^2 .

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, 7868503 + ... + 7870054.

Almost surely, 2^12213120232 is an apocalyptic number.

It is an amenable number.

12213120232 is a deficient number, since it is larger than the sum of its proper divisors (10922560028).

12213120232 is a wasteful number, since it uses less digits than its factorization.

12213120232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15738660 (or 15738656 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12213120232 its reverse (23202131221), we get a palindrome (35415251453).

The spelling of 12213120232 in words is "twelve billion, two hundred thirteen million, one hundred twenty thousand, two hundred thirty-two".