12222122122 has 16 divisors (see below), whose sum is σ = 21863175552. Its totient is φ = 5010310800.

The previous prime is 12222122083. The next prime is 12222122147. The reversal of 12222122122 is 22122122221.

12222122122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 12222122122.

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 in 7 ways as a sum of consecutive naturals, for example, 18978129 + ... + 18978772.

It is an arithmetic number, because the mean of its divisors is an integer number (1366448472).

Almost surely, 2^12222122122 is an apocalyptic number.

12222122122 is a deficient number, since it is larger than the sum of its proper divisors (9641053430).

12222122122 is a wasteful number, since it uses less digits than its factorization.

12222122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37956933.

The product of its digits is 256, while the sum is 19.

Adding to 12222122122 its reverse (22122122221), we get a palindrome (34344244343).

Subtracting 12222122122 from its reverse (22122122221), we obtain a palindrome (9900000099).

The spelling of 12222122122 in words is "twelve billion, two hundred twenty-two million, one hundred twenty-two thousand, one hundred twenty-two".