11222011133 has 4 divisors (see below), whose sum is σ = 11222269500. Its totient is φ = 11221752768.

The previous prime is 11222011123. The next prime is 11222011153. The reversal of 11222011133 is 33111022211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33111022211 = 811 ⋅40827401.

It can be written as a sum of positive squares in 2 ways, for example, as 6886842169 + 4335168964 = 82987^2 + 65842^2 .

It is a cyclic number.

It is not a de Polignac number, because 11222011133 - 2⁶ = 11222011069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222011103) 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, 46310 + ... + 156807.

It is an arithmetic number, because the mean of its divisors is an integer number (2805567375).

Almost surely, 2^11222011133 is an apocalyptic number.

It is an amenable number.

11222011133 is a deficient number, since it is larger than the sum of its proper divisors (258367).

11222011133 is an equidigital number, since it uses as much as digits as its factorization.

11222011133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258366.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11222011133 its reverse (33111022211), we get a palindrome (44333033344).

The spelling of 11222011133 in words is "eleven billion, two hundred twenty-two million, eleven thousand, one hundred thirty-three".