111110212249 has 2 divisors, whose sum is σ = 111110212250. Its totient is φ = 111110212248.

The previous prime is 111110212207. The next prime is 111110212261. The reversal of 111110212249 is 942212011111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66032553024 + 45077659225 = 256968^2 + 212315^2 .

It is a cyclic number.

It is not a de Polignac number, because 111110212249 - 2¹¹ = 111110210201 is a prime.

It is not a weakly prime, because it can be changed into another prime (111110212649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555106124 + 55555106125.

It is an arithmetic number, because the mean of its divisors is an integer number (55555106125).

Almost surely, 2^111110212249 is an apocalyptic number.

It is an amenable number.

111110212249 is a deficient number, since it is larger than the sum of its proper divisors (1).

111110212249 is an equidigital number, since it uses as much as digits as its factorization.

111110212249 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 25.

The spelling of 111110212249 in words is "one hundred eleven billion, one hundred ten million, two hundred twelve thousand, two hundred forty-nine".