11222211043 has 4 divisors (see below), whose sum is σ = 11433950928. Its totient is φ = 11010471160.

The previous prime is 11222211001. The next prime is 11222211047. The reversal of 11222211043 is 34011222211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34011222211 = 2857 ⋅11904523.

It is a cyclic number.

It is not a de Polignac number, because 11222211043 - 2¹³ = 11222202851 is a prime.

It is a super-2 number, since 2×11222211043² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11222211043.

It is not an unprimeable number, because it can be changed into a prime (11222211047) 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 in 3 ways as a sum of consecutive naturals, for example, 105869863 + ... + 105869968.

It is an arithmetic number, because the mean of its divisors is an integer number (2858487732).

Almost surely, 2^11222211043 is an apocalyptic number.

11222211043 is a deficient number, since it is larger than the sum of its proper divisors (211739885).

11222211043 is an equidigital number, since it uses as much as digits as its factorization.

11222211043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211739884.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 11222211043 its reverse (34011222211), we get a palindrome (45233433254).

The spelling of 11222211043 in words is "eleven billion, two hundred twenty-two million, two hundred eleven thousand, forty-three".