12221322992 has 10 divisors (see below), whose sum is σ = 23678813328. Its totient is φ = 6110661488.

The previous prime is 12221322991. The next prime is 12221323141. The reversal of 12221322992 is 29922312221.

12221322992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221322991) by changing a digit.

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, 381916328 + ... + 381916359.

Almost surely, 2^12221322992 is an apocalyptic number.

It is an amenable number.

12221322992 is a deficient number, since it is larger than the sum of its proper divisors (11457490336).

12221322992 is an equidigital number, since it uses as much as digits as its factorization.

12221322992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763832695 (or 763832689 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The spelling of 12221322992 in words is "twelve billion, two hundred twenty-one million, three hundred twenty-two thousand, nine hundred ninety-two".