12021112110 has 64 divisors (see below), whose sum is σ = 34035830784. Its totient is φ = 2659046400.

The previous prime is 12021112091. The next prime is 12021112123. The reversal of 12021112110 is 1121112021.

12021112110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12021112110² (a number of 21 digits) contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 916771 + ... + 929790.

It is an arithmetic number, because the mean of its divisors is an integer number (531809856).

Almost surely, 2^12021112110 is an apocalyptic number.

12021112110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021112110 is an abundant number, since it is smaller than the sum of its proper divisors (22014718674).

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

12021112110 is a wasteful number, since it uses less digits than its factorization.

12021112110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846609.

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

Adding to 12021112110 its reverse (1121112021), we get a palindrome (13142224131).

The spelling of 12021112110 in words is "twelve billion, twenty-one million, one hundred twelve thousand, one hundred ten".