12222111320 has 16 divisors (see below), whose sum is σ = 27499750560. Its totient is φ = 4888844512.

The previous prime is 12222111313. The next prime is 12222111331. The reversal of 12222111320 is 2311122221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152776352 + ... + 152776431.

It is an arithmetic number, because the mean of its divisors is an integer number (1718734410).

Almost surely, 2^12222111320 is an apocalyptic number.

12222111320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222111320 is an abundant number, since it is smaller than the sum of its proper divisors (15277639240).

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

12222111320 is a wasteful number, since it uses less digits than its factorization.

12222111320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305552794 (or 305552790 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12222111320 its reverse (2311122221), we get a palindrome (14533233541).

The spelling of 12222111320 in words is "twelve billion, two hundred twenty-two million, one hundred eleven thousand, three hundred twenty".