2121202110201 has 16 divisors (see below), whose sum is σ = 2876883549120. Its totient is φ = 1389838994240.

The previous prime is 2121202110199. The next prime is 2121202110229. The reversal of 2121202110201 is 1020112021212.

It is a cyclic number.

It is not a de Polignac number, because 2121202110201 - 2¹ = 2121202110199 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2121202110101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 656130 + ... + 2161691.

It is an arithmetic number, because the mean of its divisors is an integer number (179805221820).

Almost surely, 2^{2121202110201} is an apocalyptic number.

It is an amenable number.

2121202110201 is a deficient number, since it is larger than the sum of its proper divisors (755681438919).

2121202110201 is a wasteful number, since it uses less digits than its factorization.

2121202110201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2822136.

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

Adding to 2121202110201 its reverse (1020112021212), we get a palindrome (3141314131413).

The spelling of 2121202110201 in words is "two trillion, one hundred twenty-one billion, two hundred two million, one hundred ten thousand, two hundred one".