12120113112121 has 8 divisors (see below), whose sum is σ = 13852093416704. Its totient is φ = 10388266701120.

The previous prime is 12120113112113. The next prime is 12120113112127. The reversal of 12120113112121 is 12121131102121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12120113112121 - 2³ = 12120113112113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120113112127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33279345 + ... + 33641566.

It is an arithmetic number, because the mean of its divisors is an integer number (1731511677088).

Almost surely, 2^{12120113112121} is an apocalyptic number.

It is an amenable number.

12120113112121 is a deficient number, since it is larger than the sum of its proper divisors (1731980304583).

12120113112121 is an equidigital number, since it uses as much as digits as its factorization.

12120113112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66946791.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 12120113112121 its reverse (12121131102121), we get a palindrome (24241244214242).

The spelling of 12120113112121 in words is "twelve trillion, one hundred twenty billion, one hundred thirteen million, one hundred twelve thousand, one hundred twenty-one".