120201121 has 4 divisors (see below), whose sum is σ = 120270100. Its totient is φ = 120132144.

The previous prime is 120201119. The next prime is 120201127. The reversal of 120201121 is 121102021.

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 114725521 + 5475600 = 10711^2 + 2340^2 .

It is a cyclic number.

It is not a de Polignac number, because 120201121 - 2¹ = 120201119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120201098 and 120201107.

It is not an unprimeable number, because it can be changed into a prime (120201127) 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, 31806 + ... + 35383.

It is an arithmetic number, because the mean of its divisors is an integer number (30067525).

Almost surely, 2^120201121 is an apocalyptic number.

It is an amenable number.

120201121 is a deficient number, since it is larger than the sum of its proper divisors (68979).

120201121 is an equidigital number, since it uses as much as digits as its factorization.

120201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68978.

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

The square root of 120201121 is about 10963.6271826435. The cubic root of 120201121 is about 493.5178205285.

Adding to 120201121 its reverse (121102021), we get a palindrome (241303142).

The spelling of 120201121 in words is "one hundred twenty million, two hundred one thousand, one hundred twenty-one".