2210121110112 has 144 divisors (see below), whose sum is σ = 6072937652880. Its totient is φ = 703268407296.

The previous prime is 2210121110063. The next prime is 2210121110143. The reversal of 2210121110112 is 2110111210122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2210121110091 and 2210121110100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9866814 + ... + 10088322.

It is an arithmetic number, because the mean of its divisors is an integer number (42173178145).

Almost surely, 2^{2210121110112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2210121110112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3036468826440).

2210121110112 is an abundant number, since it is smaller than the sum of its proper divisors (3862816542768).

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

2210121110112 is a wasteful number, since it uses less digits than its factorization.

2210121110112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221665 (or 221604 counting only the distinct ones).

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

Adding to 2210121110112 its reverse (2110111210122), we get a palindrome (4320232320234).

The spelling of 2210121110112 in words is "two trillion, two hundred ten billion, one hundred twenty-one million, one hundred ten thousand, one hundred twelve".