10112111219909 has 2 divisors, whose sum is σ = 10112111219910. Its totient is φ = 10112111219908.

The previous prime is 10112111219893. The next prime is 10112111219929. The reversal of 10112111219909 is 90991211121101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9720614484100 + 391496735809 = 3117790^2 + 625697^2 .

It is a cyclic number.

It is not a de Polignac number, because 10112111219909 - 2⁴ = 10112111219893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10112111219929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5056055609954 + 5056055609955.

It is an arithmetic number, because the mean of its divisors is an integer number (5056055609955).

Almost surely, 2^{10112111219909} is an apocalyptic number.

It is an amenable number.

10112111219909 is a deficient number, since it is larger than the sum of its proper divisors (1).

10112111219909 is an equidigital number, since it uses as much as digits as its factorization.

10112111219909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 38.

The spelling of 10112111219909 in words is "ten trillion, one hundred twelve billion, one hundred eleven million, two hundred nineteen thousand, nine hundred nine".