111822229 has 2 divisors, whose sum is σ = 111822230. Its totient is φ = 111822228.

The previous prime is 111822199. The next prime is 111822233. The reversal of 111822229 is 922228111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65173329 + 46648900 = 8073^2 + 6830^2 .

It is a cyclic number.

It is not a de Polignac number, because 111822229 - 2⁵ = 111822197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111822197 and 111822206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111822299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55911114 + 55911115.

It is an arithmetic number, because the mean of its divisors is an integer number (55911115).

Almost surely, 2^111822229 is an apocalyptic number.

It is an amenable number.

111822229 is a deficient number, since it is larger than the sum of its proper divisors (1).

111822229 is an equidigital number, since it uses as much as digits as its factorization.

111822229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 28.

The square root of 111822229 is about 10574.6030185535. The cubic root of 111822229 is about 481.7732859976.

The spelling of 111822229 in words is "one hundred eleven million, eight hundred twenty-two thousand, two hundred twenty-nine".