2012111191819 has 2 divisors, whose sum is σ = 2012111191820. Its totient is φ = 2012111191818.

The previous prime is 2012111191793. The next prime is 2012111191843. The reversal of 2012111191819 is 9181911112102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2012111191819 - 2²⁹ = 2011574320907 is a prime.

It is a super-2 number, since 2×2012111191819² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2012111141819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006055595909 + 1006055595910.

It is an arithmetic number, because the mean of its divisors is an integer number (1006055595910).

Almost surely, 2^{2012111191819} is an apocalyptic number.

2012111191819 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012111191819 is an equidigital number, since it uses as much as digits as its factorization.

2012111191819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 37.

The spelling of 2012111191819 in words is "two trillion, twelve billion, one hundred eleven million, one hundred ninety-one thousand, eight hundred nineteen".