12001021200122 has 8 divisors (see below), whose sum is σ = 18001598976372. Its totient is φ = 6000488208000.

The previous prime is 12001021200073. The next prime is 12001021200209. The reversal of 12001021200122 is 22100212010021.

It can be written as a sum of positive squares in 2 ways, for example, as 11300885699041 + 700135501081 = 3361679^2 + 836741^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 12001021200097 and 12001021200106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10517879 + ... + 11602922.

Almost surely, 2^{12001021200122} is an apocalyptic number.

12001021200122 is a deficient number, since it is larger than the sum of its proper divisors (6000577776250).

12001021200122 is a wasteful number, since it uses less digits than its factorization.

12001021200122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22392064.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12001021200122 its reverse (22100212010021), we get a palindrome (34101233210143).

The spelling of 12001021200122 in words is "twelve trillion, one billion, twenty-one million, two hundred thousand, one hundred twenty-two".