201111121219999 has 2 divisors, whose sum is σ = 201111121220000. Its totient is φ = 201111121219998.

The previous prime is 201111121219963. The next prime is 201111121220011. The reversal of 201111121219999 is 999912121111102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201111121219999 - 2²¹ = 201111119122847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201111121289999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100555560609999 + 100555560610000.

It is an arithmetic number, because the mean of its divisors is an integer number (100555560610000).

Almost surely, 2^{201111121219999} is an apocalyptic number.

201111121219999 is a deficient number, since it is larger than the sum of its proper divisors (1).

201111121219999 is an equidigital number, since it uses as much as digits as its factorization.

201111121219999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 49.

The spelling of 201111121219999 in words is "two hundred one trillion, one hundred eleven billion, one hundred twenty-one million, two hundred nineteen thousand, nine hundred ninety-nine".