12120211011018 has 32 divisors (see below), whose sum is σ = 26705919506112. Its totient is φ = 3636426944000.

The previous prime is 12120211011017. The next prime is 12120211011031. The reversal of 12120211011018 is 81011011202121.

It is a junction number, because it is equal to n+sod(n) for n = 12120211010985 and 12120211011003.

It is not an unprimeable number, because it can be changed into a prime (12120211011017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 909100071 + ... + 909113402.

It is an arithmetic number, because the mean of its divisors is an integer number (834559984566).

Almost surely, 2^{12120211011018} is an apocalyptic number.

12120211011018 is an abundant number, since it is smaller than the sum of its proper divisors (14585708495094).

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

12120211011018 is a wasteful number, since it uses less digits than its factorization.

12120211011018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818213590.

The product of its (nonzero) digits is 64, while the sum is 21.

Adding to 12120211011018 its reverse (81011011202121), we get a palindrome (93131222213139).

The spelling of 12120211011018 in words is "twelve trillion, one hundred twenty billion, two hundred eleven million, eleven thousand, eighteen".