100211109989 has 2 divisors, whose sum is σ = 100211109990. Its totient is φ = 100211109988.

The previous prime is 100211109967. The next prime is 100211109997. The reversal of 100211109989 is 989901112001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85941612964 + 14269497025 = 293158^2 + 119455^2 .

It is a cyclic number.

It is not a de Polignac number, because 100211109989 - 2¹² = 100211105893 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100211109289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50105554994 + 50105554995.

It is an arithmetic number, because the mean of its divisors is an integer number (50105554995).

Almost surely, 2^100211109989 is an apocalyptic number.

It is an amenable number.

100211109989 is a deficient number, since it is larger than the sum of its proper divisors (1).

100211109989 is an equidigital number, since it uses as much as digits as its factorization.

100211109989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 41.

The spelling of 100211109989 in words is "one hundred billion, two hundred eleven million, one hundred nine thousand, nine hundred eighty-nine".