111227899 has 2 divisors, whose sum is σ = 111227900. Its totient is φ = 111227898.

The previous prime is 111227873. The next prime is 111227903. The reversal of 111227899 is 998722111.

It is a strong prime.

It is an emirp because it is prime and its reverse (998722111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111227899 - 2⁷ = 111227771 is a prime.

It is a Chen prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (111227849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55613949 + 55613950.

It is an arithmetic number, because the mean of its divisors is an integer number (55613950).

Almost surely, 2^111227899 is an apocalyptic number.

111227899 is a deficient number, since it is larger than the sum of its proper divisors (1).

111227899 is an equidigital number, since it uses as much as digits as its factorization.

111227899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 40.

The square root of 111227899 is about 10546.4638149476. The cubic root of 111227899 is about 480.9182350718.

The spelling of 111227899 in words is "one hundred eleven million, two hundred twenty-seven thousand, eight hundred ninety-nine".