120111220110 has 96 divisors (see below), whose sum is σ = 335466492192. Its totient is φ = 27442894080.

The previous prime is 120111220109. The next prime is 120111220157. The reversal of 120111220110 is 11022111021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3943540 + ... + 3973880.

It is an arithmetic number, because the mean of its divisors is an integer number (3494442627).

Almost surely, 2^120111220110 is an apocalyptic number.

120111220110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 120111220110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167733246096).

120111220110 is an abundant number, since it is smaller than the sum of its proper divisors (215355272082).

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

120111220110 is a wasteful number, since it uses less digits than its factorization.

120111220110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33058 (or 33051 counting only the distinct ones).

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

Adding to 120111220110 its reverse (11022111021), we get a palindrome (131133331131).

The spelling of 120111220110 in words is "one hundred twenty billion, one hundred eleven million, two hundred twenty thousand, one hundred ten".