100221299 has 2 divisors, whose sum is σ = 100221300. Its totient is φ = 100221298.

The previous prime is 100221293. The next prime is 100221311. The reversal of 100221299 is 992122001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100221299 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (100221293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50110649 + 50110650.

It is an arithmetic number, because the mean of its divisors is an integer number (50110650).

Almost surely, 2^100221299 is an apocalyptic number.

100221299 is a deficient number, since it is larger than the sum of its proper divisors (1).

100221299 is an equidigital number, since it uses as much as digits as its factorization.

100221299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 100221299 is about 10011.0588351083. The cubic root of 100221299 is about 464.5010240897.

The spelling of 100221299 in words is "one hundred million, two hundred twenty-one thousand, two hundred ninety-nine".