111100212089 has 2 divisors, whose sum is σ = 111100212090. Its totient is φ = 111100212088.

The previous prime is 111100212071. The next prime is 111100212103. The reversal of 111100212089 is 980212001111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90410266489 + 20689945600 = 300683^2 + 143840^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111100212089 is a prime.

It is not a weakly prime, because it can be changed into another prime (111100212589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55550106044 + 55550106045.

It is an arithmetic number, because the mean of its divisors is an integer number (55550106045).

Almost surely, 2^111100212089 is an apocalyptic number.

It is an amenable number.

111100212089 is a deficient number, since it is larger than the sum of its proper divisors (1).

111100212089 is an equidigital number, since it uses as much as digits as its factorization.

111100212089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 26.

The spelling of 111100212089 in words is "one hundred eleven billion, one hundred million, two hundred twelve thousand, eighty-nine".