111200222009 has 2 divisors, whose sum is σ = 111200222010. Its totient is φ = 111200222008.

The previous prime is 111200221967. The next prime is 111200222051. The reversal of 111200222009 is 900222002111.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (111200221967) and next prime (111200222051).

It can be written as a sum of positive squares in only one way, i.e., 58175028025 + 53025193984 = 241195^2 + 230272^2 .

It is an emirp because it is prime and its reverse (900222002111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111200222009 is a prime.

It is not a weakly prime, because it can be changed into another prime (111200212009) 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, 55600111004 + 55600111005.

It is an arithmetic number, because the mean of its divisors is an integer number (55600111005).

Almost surely, 2^111200222009 is an apocalyptic number.

It is an amenable number.

111200222009 is a deficient number, since it is larger than the sum of its proper divisors (1).

111200222009 is an equidigital number, since it uses as much as digits as its factorization.

111200222009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 111200222009 in words is "one hundred eleven billion, two hundred million, two hundred twenty-two thousand, nine".