112020120120121 has 4 divisors (see below), whose sum is σ = 112436551793700. Its totient is φ = 111603688446544.

The previous prime is 112020120120113. The next prime is 112020120120133. The reversal of 112020120120121 is 121021021020211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2696784711721 + 109323335408400 = 1642189^2 + 10455780^2 .

It is a cyclic number.

It is not a de Polignac number, because 112020120120121 - 2³ = 112020120120113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112020120120095 and 112020120120104.

It is not an unprimeable number, because it can be changed into a prime (112020120121121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208215836386 + ... + 208215836923.

It is an arithmetic number, because the mean of its divisors is an integer number (28109137948425).

Almost surely, 2^{112020120120121} is an apocalyptic number.

It is an amenable number.

112020120120121 is a deficient number, since it is larger than the sum of its proper divisors (416431673579).

112020120120121 is an equidigital number, since it uses as much as digits as its factorization.

112020120120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416431673578.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 112020120120121 its reverse (121021021020211), we get a palindrome (233041141140332).

The spelling of 112020120120121 in words is "one hundred twelve trillion, twenty billion, one hundred twenty million, one hundred twenty thousand, one hundred twenty-one".