11491222222569 has 16 divisors (see below), whose sum is σ = 15988944873600. Its totient is φ = 7327205419776.

The previous prime is 11491222222541. The next prime is 11491222222573. The reversal of 11491222222569 is 96522222219411.

It is not a de Polignac number, because 11491222222569 - 2¹⁵ = 11491222189801 is a prime.

It is a super-2 number, since 2×11491222222569² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11491222222969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5067184 + ... + 6975585.

It is an arithmetic number, because the mean of its divisors is an integer number (999309054600).

Almost surely, 2^{11491222222569} is an apocalyptic number.

It is an amenable number.

11491222222569 is a deficient number, since it is larger than the sum of its proper divisors (4497722651031).

11491222222569 is a wasteful number, since it uses less digits than its factorization.

11491222222569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12056624.

The product of its digits is 622080, while the sum is 48.

The spelling of 11491222222569 in words is "eleven trillion, four hundred ninety-one billion, two hundred twenty-two million, two hundred twenty-two thousand, five hundred sixty-nine".