121505227 has 2 divisors, whose sum is σ = 121505228. Its totient is φ = 121505226.

The previous prime is 121505191. The next prime is 121505257. The reversal of 121505227 is 722505121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121505227 - 2¹⁹ = 120980939 is a prime.

It is not a weakly prime, because it can be changed into another prime (121505257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60752613 + 60752614.

It is an arithmetic number, because the mean of its divisors is an integer number (60752614).

Almost surely, 2^121505227 is an apocalyptic number.

121505227 is a deficient number, since it is larger than the sum of its proper divisors (1).

121505227 is an equidigital number, since it uses as much as digits as its factorization.

121505227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 121505227 is about 11022.9409415092. The cubic root of 121505227 is about 495.2961897730.

The spelling of 121505227 in words is "one hundred twenty-one million, five hundred five thousand, two hundred twenty-seven".