12210201020121 has 16 divisors (see below), whose sum is σ = 17729591806080. Its totient is φ = 7429543228800.

The previous prime is 12210201020041. The next prime is 12210201020141. The reversal of 12210201020121 is 12102010201221.

It is not a de Polignac number, because 12210201020121 - 2¹⁸ = 12210200757977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12210201020121.

It is not an unprimeable number, because it can be changed into a prime (12210201020141) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1758884605 + ... + 1758891546.

It is an arithmetic number, because the mean of its divisors is an integer number (1108099487880).

Almost surely, 2^{12210201020121} is an apocalyptic number.

It is an amenable number.

12210201020121 is a deficient number, since it is larger than the sum of its proper divisors (5519390785959).

12210201020121 is a wasteful number, since it uses less digits than its factorization.

12210201020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3517776256.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12210201020121 its reverse (12102010201221), we get a palindrome (24312211221342).

It can be divided in two parts, 1 and 2210201020121, that added together give a palindrome (2210201020122).

The spelling of 12210201020121 in words is "twelve trillion, two hundred ten billion, two hundred one million, twenty thousand, one hundred twenty-one".