94571221999 has 2 divisors, whose sum is σ = 94571222000. Its totient is φ = 94571221998.

The previous prime is 94571221967. The next prime is 94571222017. The reversal of 94571221999 is 99912217549.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 94571221999 - 2⁵ = 94571221967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94571221499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47285610999 + 47285611000.

It is an arithmetic number, because the mean of its divisors is an integer number (47285611000).

Almost surely, 2^94571221999 is an apocalyptic number.

94571221999 is a deficient number, since it is larger than the sum of its proper divisors (1).

94571221999 is an equidigital number, since it uses as much as digits as its factorization.

94571221999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3674160, while the sum is 58.

The spelling of 94571221999 in words is "ninety-four billion, five hundred seventy-one million, two hundred twenty-one thousand, nine hundred ninety-nine".