100221102035209 has 2 divisors, whose sum is σ = 100221102035210. Its totient is φ = 100221102035208.

The previous prime is 100221102035147. The next prime is 100221102035237. The reversal of 100221102035209 is 902530201122001.

It is an a-pointer prime, because the next prime (100221102035237) can be obtained adding 100221102035209 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89282240349184 + 10938861686025 = 9448928^2 + 3307395^2 .

It is a cyclic number.

It is not a de Polignac number, because 100221102035209 - 2²³ = 100221093646601 is a prime.

It is not a weakly prime, because it can be changed into another prime (100221102035239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50110551017604 + 50110551017605.

It is an arithmetic number, because the mean of its divisors is an integer number (50110551017605).

Almost surely, 2^{100221102035209} is an apocalyptic number.

It is an amenable number.

100221102035209 is a deficient number, since it is larger than the sum of its proper divisors (1).

100221102035209 is an equidigital number, since it uses as much as digits as its factorization.

100221102035209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The spelling of 100221102035209 in words is "one hundred trillion, two hundred twenty-one billion, one hundred two million, thirty-five thousand, two hundred nine".