111012211021189 has 2 divisors, whose sum is σ = 111012211021190. Its totient is φ = 111012211021188.

The previous prime is 111012211021099. The next prime is 111012211021193. The reversal of 111012211021189 is 981120112210111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74165975609089 + 36846235412100 = 8611967^2 + 6070110^2 .

It is a cyclic number.

It is not a de Polignac number, because 111012211021189 - 2²⁷ = 111012076803461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111012211021189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111012211022189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55506105510594 + 55506105510595.

It is an arithmetic number, because the mean of its divisors is an integer number (55506105510595).

Almost surely, 2^{111012211021189} is an apocalyptic number.

It is an amenable number.

111012211021189 is a deficient number, since it is larger than the sum of its proper divisors (1).

111012211021189 is an equidigital number, since it uses as much as digits as its factorization.

111012211021189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 31.

The spelling of 111012211021189 in words is "one hundred eleven trillion, twelve billion, two hundred eleven million, twenty-one thousand, one hundred eighty-nine".