111012211021099 has 2 divisors, whose sum is σ = 111012211021100. Its totient is φ = 111012211021098.

The previous prime is 111012211021079. The next prime is 111012211021189. The reversal of 111012211021099 is 990120112210111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111012211021099 - 2⁹ = 111012211020587 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111012211021099.

It is not a weakly prime, because it can be changed into another prime (111012211021009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55506105510549 + 55506105510550.

It is an arithmetic number, because the mean of its divisors is an integer number (55506105510550).

Almost surely, 2^{111012211021099} is an apocalyptic number.

111012211021099 is a deficient number, since it is larger than the sum of its proper divisors (1).

111012211021099 is an equidigital number, since it uses as much as digits as its factorization.

111012211021099 is an evil number, because the sum of its binary digits is even.

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

The spelling of 111012211021099 in words is "one hundred eleven trillion, twelve billion, two hundred eleven million, twenty-one thousand, ninety-nine".