110202012191 has 2 divisors, whose sum is σ = 110202012192. Its totient is φ = 110202012190.

The previous prime is 110202012103. The next prime is 110202012211. The reversal of 110202012191 is 191210202011.

It is an a-pointer prime, because the next prime (110202012211) can be obtained adding 110202012191 to its sum of digits (20).

It is a strong prime.

It is an emirp because it is prime and its reverse (191210202011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 110202012191 - 2¹⁴ = 110201995807 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110222012191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55101006095 + 55101006096.

It is an arithmetic number, because the mean of its divisors is an integer number (55101006096).

Almost surely, 2^110202012191 is an apocalyptic number.

110202012191 is a deficient number, since it is larger than the sum of its proper divisors (1).

110202012191 is an equidigital number, since it uses as much as digits as its factorization.

110202012191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 110202012191 in words is "one hundred ten billion, two hundred two million, twelve thousand, one hundred ninety-one".