12112211021122 has 16 divisors (see below), whose sum is σ = 18273821857344. Its totient is φ = 6020998074000.

The previous prime is 12112211021107. The next prime is 12112211021147. The reversal of 12112211021122 is 22112011221121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12112211021122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14853654 + ... + 15647857.

It is an arithmetic number, because the mean of its divisors is an integer number (1142113866084).

Almost surely, 2^{12112211021122} is an apocalyptic number.

12112211021122 is a deficient number, since it is larger than the sum of its proper divisors (6161610836222).

12112211021122 is a wasteful number, since it uses less digits than its factorization.

12112211021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30502665.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12112211021122 its reverse (22112011221121), we get a palindrome (34224222242243).

It can be divided in two parts, 121122 and 11021122, that added together give a square (11142244 = 3338²).

The spelling of 12112211021122 in words is "twelve trillion, one hundred twelve billion, two hundred eleven million, twenty-one thousand, one hundred twenty-two".