111021100220011 has 2 divisors, whose sum is σ = 111021100220012. Its totient is φ = 111021100220010.

The previous prime is 111021100219943. The next prime is 111021100220027. The reversal of 111021100220011 is 110022001120111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111021100220011 - 2²¹ = 111021098122859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111021100219973 and 111021100220000.

It is not a weakly prime, because it can be changed into another prime (111021100220911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55510550110005 + 55510550110006.

It is an arithmetic number, because the mean of its divisors is an integer number (55510550110006).

Almost surely, 2^{111021100220011} is an apocalyptic number.

111021100220011 is a deficient number, since it is larger than the sum of its proper divisors (1).

111021100220011 is an equidigital number, since it uses as much as digits as its factorization.

111021100220011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111021100220011 its reverse (110022001120111), we get a palindrome (221043101340122).

The spelling of 111021100220011 in words is "one hundred eleven trillion, twenty-one billion, one hundred million, two hundred twenty thousand, eleven".