110202209989 has 2 divisors, whose sum is σ = 110202209990. Its totient is φ = 110202209988.

The previous prime is 110202209987. The next prime is 110202210017. The reversal of 110202209989 is 989902202011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75505697089 + 34696512900 = 274783^2 + 186270^2 .

It is a cyclic number.

It is not a de Polignac number, because 110202209989 - 2¹ = 110202209987 is a prime.

Together with 110202209987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110202209981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55101104994 + 55101104995.

It is an arithmetic number, because the mean of its divisors is an integer number (55101104995).

Almost surely, 2^110202209989 is an apocalyptic number.

It is an amenable number.

110202209989 is a deficient number, since it is larger than the sum of its proper divisors (1).

110202209989 is an equidigital number, since it uses as much as digits as its factorization.

110202209989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 43.

The spelling of 110202209989 in words is "one hundred ten billion, two hundred two million, two hundred nine thousand, nine hundred eighty-nine".