121490227 has 2 divisors, whose sum is σ = 121490228. Its totient is φ = 121490226.

The previous prime is 121490197. The next prime is 121490273. The reversal of 121490227 is 722094121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121490227 - 2⁷ = 121490099 is a prime.

It is equal to p_6921703 and since 121490227 and 6921703 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 121490195 and 121490204.

It is not a weakly prime, because it can be changed into another prime (121490287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60745113 + 60745114.

It is an arithmetic number, because the mean of its divisors is an integer number (60745114).

Almost surely, 2^121490227 is an apocalyptic number.

121490227 is a deficient number, since it is larger than the sum of its proper divisors (1).

121490227 is an equidigital number, since it uses as much as digits as its factorization.

121490227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 121490227 is about 11022.2605213268. The cubic root of 121490227 is about 495.2758072518.

The spelling of 121490227 in words is "one hundred twenty-one million, four hundred ninety thousand, two hundred twenty-seven".