2110122202121 has 4 divisors (see below), whose sum is σ = 2110131980100. Its totient is φ = 2110112424144.

The previous prime is 2110122202091. The next prime is 2110122202129. The reversal of 2110122202121 is 1212022210112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1287362544400 + 822759657721 = 1134620^2 + 907061^2 .

It is a cyclic number.

It is not a de Polignac number, because 2110122202121 - 2³⁴ = 2092942332937 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 2110122202121.

It is not an unprimeable number, because it can be changed into a prime (2110122202129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4557806 + ... + 4999383.

It is an arithmetic number, because the mean of its divisors is an integer number (527532995025).

Almost surely, 2^{2110122202121} is an apocalyptic number.

It is an amenable number.

2110122202121 is a deficient number, since it is larger than the sum of its proper divisors (9777979).

2110122202121 is an equidigital number, since it uses as much as digits as its factorization.

2110122202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9777978.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2110122202121 its reverse (1212022210112), we get a palindrome (3322144412233).

The spelling of 2110122202121 in words is "two trillion, one hundred ten billion, one hundred twenty-two million, two hundred two thousand, one hundred twenty-one".