120001121 has 2 divisors, whose sum is σ = 120001122. Its totient is φ = 120001120.

The previous prime is 120001117. The next prime is 120001153. The reversal of 120001121 is 121100021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105863521 + 14137600 = 10289^2 + 3760^2 .

It is a cyclic number.

It is not a de Polignac number, because 120001121 - 2² = 120001117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120001099 and 120001108.

It is not a weakly prime, because it can be changed into another prime (120001111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60000560 + 60000561.

It is an arithmetic number, because the mean of its divisors is an integer number (60000561).

Almost surely, 2^120001121 is an apocalyptic number.

It is an amenable number.

120001121 is a deficient number, since it is larger than the sum of its proper divisors (1).

120001121 is an equidigital number, since it uses as much as digits as its factorization.

120001121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 120001121 is about 10954.5023163994. The cubic root of 120001121 is about 493.2439507634.

Adding to 120001121 its reverse (121100021), we get a palindrome (241101142).

The spelling of 120001121 in words is "one hundred twenty million, one thousand, one hundred twenty-one".