12222122320 has 40 divisors (see below), whose sum is σ = 28424368224. Its totient is φ = 4887484032.

The previous prime is 12222122299. The next prime is 12222122323. The reversal of 12222122320 is 2322122221.

12222122320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222122323) 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 in 7 ways as a sum of consecutive naturals, for example, 296407 + ... + 335113.

Almost surely, 2^12222122320 is an apocalyptic number.

12222122320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222122320 is an abundant number, since it is smaller than the sum of its proper divisors (16202245904).

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

12222122320 is a wasteful number, since it uses less digits than its factorization.

12222122320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42667 (or 42661 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 12222122320 its reverse (2322122221), we get a palindrome (14544244541).

Subtracting from 12222122320 its reverse (2322122221), we obtain a palindrome (9900000099).

The spelling of 12222122320 in words is "twelve billion, two hundred twenty-two million, one hundred twenty-two thousand, three hundred twenty".