12120211001112 has 64 divisors (see below), whose sum is σ = 30342403418880. Its totient is φ = 4034488528512.

The previous prime is 12120211001111. The next prime is 12120211001179. The reversal of 12120211001112 is 21110011202121.

It is a happy number.

It is a super-2 number, since 2×12120211001112² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12120211001091 and 12120211001100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120211001111) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 126305583 + ... + 126401505.

It is an arithmetic number, because the mean of its divisors is an integer number (474100053420).

Almost surely, 2^{12120211001112} is an apocalyptic number.

12120211001112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12120211001112 is an abundant number, since it is smaller than the sum of its proper divisors (18222192417768).

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

12120211001112 is a wasteful number, since it uses less digits than its factorization.

12120211001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103152 (or 103148 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12120211001112 its reverse (21110011202121), we get a palindrome (33230222203233).

The spelling of 12120211001112 in words is "twelve trillion, one hundred twenty billion, two hundred eleven million, one thousand, one hundred twelve".