121220041 has 2 divisors, whose sum is σ = 121220042. Its totient is φ = 121220040.

The previous prime is 121220023. The next prime is 121220069. The reversal of 121220041 is 140022121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120912016 + 308025 = 10996^2 + 555^2 .

It is a cyclic number.

It is not a de Polignac number, because 121220041 - 2¹⁹ = 120695753 is a prime.

It is not a weakly prime, because it can be changed into another prime (121220441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60610020 + 60610021.

It is an arithmetic number, because the mean of its divisors is an integer number (60610021).

Almost surely, 2^121220041 is an apocalyptic number.

It is an amenable number.

121220041 is a deficient number, since it is larger than the sum of its proper divisors (1).

121220041 is an equidigital number, since it uses as much as digits as its factorization.

121220041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 121220041 is about 11009.9973206173. The cubic root of 121220041 is about 494.9083815063.

Adding to 121220041 its reverse (140022121), we get a palindrome (261242162).

The spelling of 121220041 in words is "one hundred twenty-one million, two hundred twenty thousand, forty-one".