12000221121122 has 32 divisors (see below), whose sum is σ = 20629454397552. Its totient is φ = 5186304958464.

The previous prime is 12000221121079. The next prime is 12000221121169. The reversal of 12000221121122 is 22112112200021.

It can be written as a sum of positive squares in 8 ways, for example, as 10202345080321 + 1797876040801 = 3194111^2 + 1340849^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 12000221121122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68821103 + ... + 68995250.

Almost surely, 2^{12000221121122} is an apocalyptic number.

12000221121122 is a deficient number, since it is larger than the sum of its proper divisors (8629233276430).

12000221121122 is a wasteful number, since it uses less digits than its factorization.

12000221121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137816582.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12000221121122 its reverse (22112112200021), we get a palindrome (34112333321143).

The spelling of 12000221121122 in words is "twelve trillion, two hundred twenty-one million, one hundred twenty-one thousand, one hundred twenty-two".