12210201211121 has 32 divisors (see below), whose sum is σ = 12868439113728. Its totient is φ = 11562994175040.

The previous prime is 12210201211027. The next prime is 12210201211129. The reversal of 12210201211121 is 12111210201221.

12210201211121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12210201211121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12210201211121.

It is not an unprimeable number, because it can be changed into a prime (12210201211129) 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, 4055196506 + ... + 4055199516.

It is an arithmetic number, because the mean of its divisors is an integer number (402138722304).

Almost surely, 2^{12210201211121} is an apocalyptic number.

It is an amenable number.

12210201211121 is a deficient number, since it is larger than the sum of its proper divisors (658237902607).

12210201211121 is a wasteful number, since it uses less digits than its factorization.

12210201211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5621.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12210201211121 its reverse (12111210201221), we get a palindrome (24321411412342).

The spelling of 12210201211121 in words is "twelve trillion, two hundred ten billion, two hundred one million, two hundred eleven thousand, one hundred twenty-one".