111399227 has 2 divisors, whose sum is σ = 111399228. Its totient is φ = 111399226.

The previous prime is 111399203. The next prime is 111399287. The reversal of 111399227 is 722993111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111399227 - 2¹² = 111395131 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111399287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55699613 + 55699614.

It is an arithmetic number, because the mean of its divisors is an integer number (55699614).

Almost surely, 2^111399227 is an apocalyptic number.

111399227 is a deficient number, since it is larger than the sum of its proper divisors (1).

111399227 is an equidigital number, since it uses as much as digits as its factorization.

111399227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 35.

The square root of 111399227 is about 10554.5832224679. The cubic root of 111399227 is about 481.1650331359.

The spelling of 111399227 in words is "one hundred eleven million, three hundred ninety-nine thousand, two hundred twenty-seven".