121150217 has 2 divisors, whose sum is σ = 121150218. Its totient is φ = 121150216.

The previous prime is 121150199. The next prime is 121150229. The reversal of 121150217 is 712051121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118897216 + 2253001 = 10904^2 + 1501^2 .

It is a cyclic number.

It is not a de Polignac number, because 121150217 - 2¹⁶ = 121084681 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121150297) 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, 60575108 + 60575109.

It is an arithmetic number, because the mean of its divisors is an integer number (60575109).

Almost surely, 2^121150217 is an apocalyptic number.

It is an amenable number.

121150217 is a deficient number, since it is larger than the sum of its proper divisors (1).

121150217 is an equidigital number, since it uses as much as digits as its factorization.

121150217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 140, while the sum is 20.

The square root of 121150217 is about 11006.8259275779. The cubic root of 121150217 is about 494.8133391364.

The spelling of 121150217 in words is "one hundred twenty-one million, one hundred fifty thousand, two hundred seventeen".