12012110101220 has 24 divisors (see below), whose sum is σ = 26039154801408. Its totient is φ = 4649849071200.

The previous prime is 12012110101219. The next prime is 12012110101259. The reversal of 12012110101220 is 2210101121021.

It is a junction number, because it is equal to n+sod(n) for n = 12012110101195 and 12012110101204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9687184946 + ... + 9687186185.

It is an arithmetic number, because the mean of its divisors is an integer number (1084964783392).

Almost surely, 2^{12012110101220} is an apocalyptic number.

12012110101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012110101220 is an abundant number, since it is smaller than the sum of its proper divisors (14027044700188).

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

12012110101220 is a wasteful number, since it uses less digits than its factorization.

12012110101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19374371171 (or 19374371169 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12012110101220 its reverse (2210101121021), we get a palindrome (14222211222241).

The spelling of 12012110101220 in words is "twelve trillion, twelve billion, one hundred ten million, one hundred one thousand, two hundred twenty".