12001220200122 has 64 divisors (see below), whose sum is σ = 26075314264320. Its totient is φ = 3672056830464.

The previous prime is 12001220200111. The next prime is 12001220200129. The reversal of 12001220200122 is 22100202210021.

12001220200122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12001220200129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15725997 + ... + 16471472.

It is an arithmetic number, because the mean of its divisors is an integer number (407426785380).

Almost surely, 2^{12001220200122} is an apocalyptic number.

12001220200122 is an abundant number, since it is smaller than the sum of its proper divisors (14074094064198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12001220200122 is a wasteful number, since it uses less digits than its factorization.

12001220200122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32197607.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12001220200122 its reverse (22100202210021), we get a palindrome (34101422410143).

The spelling of 12001220200122 in words is "twelve trillion, one billion, two hundred twenty million, two hundred thousand, one hundred twenty-two".