2112100120110 has 128 divisors (see below), whose sum is σ = 5226747761664. Its totient is φ = 545829304320.

The previous prime is 2112100120087. The next prime is 2112100120111. The reversal of 2112100120110 is 110210012112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112100120111) 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, 307389975 + ... + 307396845.

It is an arithmetic number, because the mean of its divisors is an integer number (40833966888).

Almost surely, 2^{2112100120110} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2112100120110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2613373880832).

2112100120110 is an abundant number, since it is smaller than the sum of its proper divisors (3114647641554).

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

2112100120110 is a wasteful number, since it uses less digits than its factorization.

2112100120110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7978.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2112100120110 its reverse (110210012112), we get a palindrome (2222310132222).

The spelling of 2112100120110 in words is "two trillion, one hundred twelve billion, one hundred million, one hundred twenty thousand, one hundred ten".