112020121 has 4 divisors (see below), whose sum is σ = 112042512. Its totient is φ = 111997732.

The previous prime is 112020107. The next prime is 112020133. The reversal of 112020121 is 121020211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 112020121 - 2⁷ = 112019993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112020098 and 112020107.

It is not an unprimeable number, because it can be changed into a prime (112020151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126 + ... + 14968.

It is an arithmetic number, because the mean of its divisors is an integer number (28010628).

Almost surely, 2^112020121 is an apocalyptic number.

It is an amenable number.

112020121 is a deficient number, since it is larger than the sum of its proper divisors (22391).

112020121 is an equidigital number, since it uses as much as digits as its factorization.

112020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22390.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 112020121 is about 10583.9558294619. The cubic root of 112020121 is about 482.0573168641.

Adding to 112020121 its reverse (121020211), we get a palindrome (233040332).

The spelling of 112020121 in words is "one hundred twelve million, twenty thousand, one hundred twenty-one".