11220111839 has 2 divisors, whose sum is σ = 11220111840. Its totient is φ = 11220111838.

The previous prime is 11220111829. The next prime is 11220111841. The reversal of 11220111839 is 93811102211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11220111839 is a prime.

It is a Sophie Germain prime.

Together with 11220111841, 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 (11220111829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610055919 + 5610055920.

It is an arithmetic number, because the mean of its divisors is an integer number (5610055920).

Almost surely, 2^11220111839 is an apocalyptic number.

11220111839 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220111839 is an equidigital number, since it uses as much as digits as its factorization.

11220111839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 29.

The spelling of 11220111839 in words is "eleven billion, two hundred twenty million, one hundred eleven thousand, eight hundred thirty-nine".