12120101112112 has 60 divisors (see below), whose sum is σ = 27317110443480. Its totient is φ = 5194233020928.

The previous prime is 12120101112071. The next prime is 12120101112139. The reversal of 12120101112112 is 21121110102121.

It is a Harshad number since it is a multiple of its sum of digits (16).

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 11 ways as a sum of consecutive naturals, for example, 56707464 + ... + 56920792.

It is an arithmetic number, because the mean of its divisors is an integer number (455285174058).

Almost surely, 2^{12120101112112} is an apocalyptic number.

It is an amenable number.

12120101112112 is an abundant number, since it is smaller than the sum of its proper divisors (15197009331368).

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

12120101112112 is a wasteful number, since it uses less digits than its factorization.

12120101112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285818 (or 285805 counting only the distinct ones).

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

Adding to 12120101112112 its reverse (21121110102121), we get a palindrome (33241211214233).

The spelling of 12120101112112 in words is "twelve trillion, one hundred twenty billion, one hundred one million, one hundred twelve thousand, one hundred twelve".