12121131122 has 4 divisors (see below), whose sum is σ = 18181696686. Its totient is φ = 6060565560.

The previous prime is 12121131107. The next prime is 12121131133. The reversal of 12121131122 is 22113112121.

It is a happy number.

12121131122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12022903201 + 98227921 = 109649^2 + 9911^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12121131122.

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 as a sum of consecutive naturals, namely, 3030282779 + ... + 3030282782.

Almost surely, 2^12121131122 is an apocalyptic number.

12121131122 is a deficient number, since it is larger than the sum of its proper divisors (6060565564).

12121131122 is an equidigital number, since it uses as much as digits as its factorization.

12121131122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6060565563.

The product of its digits is 48, while the sum is 17.

Adding to 12121131122 its reverse (22113112121), we get a palindrome (34234243243).

The spelling of 12121131122 in words is "twelve billion, one hundred twenty-one million, one hundred thirty-one thousand, one hundred twenty-two".