41221091 has 2 divisors, whose sum is σ = 41221092. Its totient is φ = 41221090.

The previous prime is 41221079. The next prime is 41221123. The reversal of 41221091 is 19012214.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 41221091 - 2⁶ = 41221027 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (41226091) 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, 20610545 + 20610546.

It is an arithmetic number, because the mean of its divisors is an integer number (20610546).

Almost surely, 2^41221091 is an apocalyptic number.

41221091 is a deficient number, since it is larger than the sum of its proper divisors (1).

41221091 is an equidigital number, since it uses as much as digits as its factorization.

41221091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 41221091 is about 6420.3653322844. The cubic root of 41221091 is about 345.4404261018.

The spelling of 41221091 in words is "forty-one million, two hundred twenty-one thousand, ninety-one".