11220111121099 has 2 divisors, whose sum is σ = 11220111121100. Its totient is φ = 11220111121098.

The previous prime is 11220111121081. The next prime is 11220111121103. The reversal of 11220111121099 is 99012111102211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11220111121099 - 2²⁹ = 11219574250187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11220111121099.

It is not a weakly prime, because it can be changed into another prime (11220111121049) 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, 5610055560549 + 5610055560550.

It is an arithmetic number, because the mean of its divisors is an integer number (5610055560550).

Almost surely, 2^{11220111121099} is an apocalyptic number.

11220111121099 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220111121099 is an equidigital number, since it uses as much as digits as its factorization.

11220111121099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 31.

The spelling of 11220111121099 in words is "eleven trillion, two hundred twenty billion, one hundred eleven million, one hundred twenty-one thousand, ninety-nine".