1102220909 has 2 divisors, whose sum is σ = 1102220910. Its totient is φ = 1102220908.

The previous prime is 1102220897. The next prime is 1102220929. The reversal of 1102220909 is 9090222011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1101576100 + 644809 = 33190^2 + 803^2 .

It is a cyclic number.

It is not a de Polignac number, because 1102220909 - 2¹² = 1102216813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1102220929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551110454 + 551110455.

It is an arithmetic number, because the mean of its divisors is an integer number (551110455).

Almost surely, 2^1102220909 is an apocalyptic number.

It is an amenable number.

1102220909 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102220909 is an equidigital number, since it uses as much as digits as its factorization.

1102220909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 1102220909 is about 33199.7124836948. The cubic root of 1102220909 is about 1032.9743757597.

The spelling of 1102220909 in words is "one billion, one hundred two million, two hundred twenty thousand, nine hundred nine".