12110231011220 has 48 divisors (see below), whose sum is σ = 26140628480400. Its totient is φ = 4710635145216.

The previous prime is 12110231011181. The next prime is 12110231011283. The reversal of 12110231011220 is 2211013201121.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 216368243716 + 11893862767504 = 465154^2 + 3448748^2 .

It is a super-2 number, since 2×12110231011220² (a number of 27 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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50432195 + ... + 50671754.

It is an arithmetic number, because the mean of its divisors is an integer number (544596426675).

Almost surely, 2^{12110231011220} is an apocalyptic number.

12110231011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12110231011220 is an abundant number, since it is smaller than the sum of its proper divisors (14030397469180).

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

12110231011220 is a wasteful number, since it uses less digits than its factorization.

12110231011220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101104124 (or 101104122 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12110231011220 its reverse (2211013201121), we get a palindrome (14321244212341).

The spelling of 12110231011220 in words is "twelve trillion, one hundred ten billion, two hundred thirty-one million, eleven thousand, two hundred twenty".