12120022110 has 96 divisors (see below), whose sum is σ = 33860708640. Its totient is φ = 2768360448.

The previous prime is 12120022099. The next prime is 12120022121. The reversal of 12120022110 is 1122002121.

It is an interprime number because it is at equal distance from previous prime (12120022099) and next prime (12120022121).

It is a Curzon number.

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, 4080706 + ... + 4083674.

It is an arithmetic number, because the mean of its divisors is an integer number (352715715).

Almost surely, 2^12120022110 is an apocalyptic number.

12120022110 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 12120022110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16930354320).

12120022110 is an abundant number, since it is smaller than the sum of its proper divisors (21740686530).

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

12120022110 is a wasteful number, since it uses less digits than its factorization.

12120022110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5770 (or 5763 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12120022110 its reverse (1122002121), we get a palindrome (13242024231).

The spelling of 12120022110 in words is "twelve billion, one hundred twenty million, twenty-two thousand, one hundred ten".