1111022009 has 2 divisors, whose sum is σ = 1111022010. Its totient is φ = 1111022008.

The previous prime is 1111021997. The next prime is 1111022021. The reversal of 1111022009 is 9002201111.

It is a balanced prime because it is at equal distance from previous prime (1111021997) and next prime (1111022021).

It can be written as a sum of positive squares in only one way, i.e., 842160400 + 268861609 = 29020^2 + 16397^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111022009 - 2⁴ = 1111021993 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111022039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555511004 + 555511005.

It is an arithmetic number, because the mean of its divisors is an integer number (555511005).

Almost surely, 2^1111022009 is an apocalyptic number.

It is an amenable number.

1111022009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111022009 is an equidigital number, since it uses as much as digits as its factorization.

1111022009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 1111022009 is about 33331.9967748708. The cubic root of 1111022009 is about 1035.7164818136.

The spelling of 1111022009 in words is "one billion, one hundred eleven million, twenty-two thousand, nine".