12011212220122 has 8 divisors (see below), whose sum is σ = 18032776542900. Its totient is φ = 6000286705824.

The previous prime is 12011212220069. The next prime is 12011212220149. The reversal of 12011212220122 is 22102221211021.

It can be written as a sum of positive squares in 2 ways, for example, as 9973538764281 + 2037673455841 = 3158091^2 + 1427471^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12011212220122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2659699297 + ... + 2659703812.

Almost surely, 2^{12011212220122} is an apocalyptic number.

12011212220122 is a deficient number, since it is larger than the sum of its proper divisors (6021564322778).

12011212220122 is a wasteful number, since it uses less digits than its factorization.

12011212220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5319404240.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12011212220122 its reverse (22102221211021), we get a palindrome (34113433431143).

It can be divided in two parts, 1201121 and 2220122, that added together give a palindrome (3421243).

The spelling of 12011212220122 in words is "twelve trillion, eleven billion, two hundred twelve million, two hundred twenty thousand, one hundred twenty-two".