1111021199 has 2 divisors, whose sum is σ = 1111021200. Its totient is φ = 1111021198.

The previous prime is 1111021169. The next prime is 1111021201. The reversal of 1111021199 is 9911201111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111021199 is a prime.

It is a Sophie Germain prime.

Together with 1111021201, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111021169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555510599 + 555510600.

It is an arithmetic number, because the mean of its divisors is an integer number (555510600).

Almost surely, 2^1111021199 is an apocalyptic number.

1111021199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111021199 is an equidigital number, since it uses as much as digits as its factorization.

1111021199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 26.

The square root of 1111021199 is about 33331.9846243814. The cubic root of 1111021199 is about 1035.7162301142.

The spelling of 1111021199 in words is "one billion, one hundred eleven million, twenty-one thousand, one hundred ninety-nine".