120112210121 has 4 divisors (see below), whose sum is σ = 124254010500. Its totient is φ = 115970409744.

The previous prime is 120112210081. The next prime is 120112210147. The reversal of 120112210121 is 121012211021.

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 100565094400 + 19547115721 = 317120^2 + 139811^2 .

It is a cyclic number.

It is not a de Polignac number, because 120112210121 - 2¹⁰ = 120112209097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120112210096 and 120112210105.

It is not an unprimeable number, because it can be changed into a prime (120112210171) 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 3 ways as a sum of consecutive naturals, for example, 2070900146 + ... + 2070900203.

It is an arithmetic number, because the mean of its divisors is an integer number (31063502625).

Almost surely, 2^120112210121 is an apocalyptic number.

It is an amenable number.

120112210121 is a deficient number, since it is larger than the sum of its proper divisors (4141800379).

120112210121 is an equidigital number, since it uses as much as digits as its factorization.

120112210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4141800378.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 120112210121 its reverse (121012211021), we get a palindrome (241124421142).

The spelling of 120112210121 in words is "one hundred twenty billion, one hundred twelve million, two hundred ten thousand, one hundred twenty-one".