121201417 has 2 divisors, whose sum is σ = 121201418. Its totient is φ = 121201416.

The previous prime is 121201397. The next prime is 121201433. The reversal of 121201417 is 714102121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89661961 + 31539456 = 9469^2 + 5616^2 .

It is a cyclic number.

It is not a de Polignac number, because 121201417 - 2¹¹ = 121199369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121201394 and 121201403.

It is not a weakly prime, because it can be changed into another prime (121201117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60600708 + 60600709.

It is an arithmetic number, because the mean of its divisors is an integer number (60600709).

Almost surely, 2^121201417 is an apocalyptic number.

It is an amenable number.

121201417 is a deficient number, since it is larger than the sum of its proper divisors (1).

121201417 is an equidigital number, since it uses as much as digits as its factorization.

121201417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 121201417 is about 11009.1515113564. The cubic root of 121201417 is about 494.8830346366.

Adding to 121201417 its reverse (714102121), we get a palindrome (835303538).

The spelling of 121201417 in words is "one hundred twenty-one million, two hundred one thousand, four hundred seventeen".