2121101210211 has 8 divisors (see below), whose sum is σ = 2829138198720. Its totient is φ = 1413565847592.

The previous prime is 2121101210197. The next prime is 2121101210213. The reversal of 2121101210211 is 1120121011212.

It is a happy number.

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

It is not a de Polignac number, because 2121101210211 - 2¹⁰ = 2121101209187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121101210213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125396605 + ... + 125413518.

It is an arithmetic number, because the mean of its divisors is an integer number (353642274840).

Almost surely, 2^{2121101210211} is an apocalyptic number.

2121101210211 is a deficient number, since it is larger than the sum of its proper divisors (708036988509).

2121101210211 is a wasteful number, since it uses less digits than its factorization.

2121101210211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250812945.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2121101210211 its reverse (1120121011212), we get a palindrome (3241222221423).

The spelling of 2121101210211 in words is "two trillion, one hundred twenty-one billion, one hundred one million, two hundred ten thousand, two hundred eleven".