120210121 has 8 divisors (see below), whose sum is σ = 125642304. Its totient is φ = 114795120.

The previous prime is 120210109. The next prime is 120210137. The reversal of 120210121 is 121012021.

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

It is a cyclic number.

It is not a de Polignac number, because 120210121 - 2⁵ = 120210089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120210098 and 120210107.

It is not an unprimeable number, because it can be changed into a prime (120210221) 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, 11250 + ... + 19156.

It is an arithmetic number, because the mean of its divisors is an integer number (15705288).

Almost surely, 2^120210121 is an apocalyptic number.

It is an amenable number.

120210121 is a deficient number, since it is larger than the sum of its proper divisors (5432183).

120210121 is an equidigital number, since it uses as much as digits as its factorization.

120210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8591.

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

The square root of 120210121 is about 10964.0376230657. The cubic root of 120210121 is about 493.5301375227.

Adding to 120210121 its reverse (121012021), we get a palindrome (241222142).

The spelling of 120210121 in words is "one hundred twenty million, two hundred ten thousand, one hundred twenty-one".