12120021110 has 8 divisors (see below), whose sum is σ = 21816038016. Its totient is φ = 4848008440.

The previous prime is 12120021107. The next prime is 12120021161. The reversal of 12120021110 is 1112002121.

12120021110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12120021091 and 12120021100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606001046 + ... + 606001065.

It is an arithmetic number, because the mean of its divisors is an integer number (2727004752).

Almost surely, 2^12120021110 is an apocalyptic number.

12120021110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120021110 is a deficient number, since it is larger than the sum of its proper divisors (9696016906).

12120021110 is a wasteful number, since it uses less digits than its factorization.

12120021110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212002118.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12120021110 its reverse (1112002121), we get a palindrome (13232023231).

The spelling of 12120021110 in words is "twelve billion, one hundred twenty million, twenty-one thousand, one hundred ten".