2110111222121 has 12 divisors (see below), whose sum is σ = 2454701990400. Its totient is φ = 1808605741320.

The previous prime is 2110111222099. The next prime is 2110111222127. The reversal of 2110111222121 is 1212221110112.

It is not a de Polignac number, because 2110111222121 - 2²⁶ = 2110044113257 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 2110111222121.

It is not an unprimeable number, because it can be changed into a prime (2110111222127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 771980 + ... + 2194578.

It is an arithmetic number, because the mean of its divisors is an integer number (204558499200).

Almost surely, 2^{2110111222121} is an apocalyptic number.

It is an amenable number.

2110111222121 is a deficient number, since it is larger than the sum of its proper divisors (344590768279).

2110111222121 is a wasteful number, since it uses less digits than its factorization.

2110111222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452884 (or 1452877 counting only the distinct ones).

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

Adding to 2110111222121 its reverse (1212221110112), we get a palindrome (3322332332233).

The spelling of 2110111222121 in words is "two trillion, one hundred ten billion, one hundred eleven million, two hundred twenty-two thousand, one hundred twenty-one".