2122110121110 has 128 divisors (see below), whose sum is σ = 5948757255168. Its totient is φ = 474465600000.

The previous prime is 2122110121093. The next prime is 2122110121111. The reversal of 2122110121110 is 111210112212.

It is a happy number.

It is a super-2 number, since 2×2122110121110² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2122110121110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122110121111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1860985 + ... + 2776235.

It is an arithmetic number, because the mean of its divisors is an integer number (46474666056).

Almost surely, 2^{2122110121110} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2122110121110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2974378627584).

2122110121110 is an abundant number, since it is smaller than the sum of its proper divisors (3826647134058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2122110121110 is a wasteful number, since it uses less digits than its factorization.

2122110121110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915510.

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

Adding to 2122110121110 its reverse (111210112212), we get a palindrome (2233320233322).

The spelling of 2122110121110 in words is "two trillion, one hundred twenty-two billion, one hundred ten million, one hundred twenty-one thousand, one hundred ten".