11022211091809 has 2 divisors, whose sum is σ = 11022211091810. Its totient is φ = 11022211091808.

The previous prime is 11022211091741. The next prime is 11022211091953. The reversal of 11022211091809 is 90819011222011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8188022006784 + 2834189085025 = 2861472^2 + 1683505^2 .

It is a cyclic number.

It is not a de Polignac number, because 11022211091809 - 2³⁵ = 10987851353441 is a prime.

It is not a weakly prime, because it can be changed into another prime (11022211091609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5511105545904 + 5511105545905.

It is an arithmetic number, because the mean of its divisors is an integer number (5511105545905).

Almost surely, 2^{11022211091809} is an apocalyptic number.

It is an amenable number.

11022211091809 is a deficient number, since it is larger than the sum of its proper divisors (1).

11022211091809 is an equidigital number, since it uses as much as digits as its factorization.

11022211091809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 37.

The spelling of 11022211091809 in words is "eleven trillion, twenty-two billion, two hundred eleven million, ninety-one thousand, eight hundred nine".