11221112033 has 4 divisors (see below), whose sum is σ = 11221348500. Its totient is φ = 11220875568.

The previous prime is 11221112009. The next prime is 11221112041. The reversal of 11221112033 is 33021112211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33021112211 = 89153 ⋅370387.

It can be written as a sum of positive squares in 2 ways, for example, as 6659865664 + 4561246369 = 81608^2 + 67537^2 .

It is a cyclic number.

It is not a de Polignac number, because 11221112033 - 2⁸ = 11221111777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11221102033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19658 + ... + 151091.

It is an arithmetic number, because the mean of its divisors is an integer number (2805337125).

Almost surely, 2^11221112033 is an apocalyptic number.

It is an amenable number.

11221112033 is a deficient number, since it is larger than the sum of its proper divisors (236467).

11221112033 is an equidigital number, since it uses as much as digits as its factorization.

11221112033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236466.

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

Adding to 11221112033 its reverse (33021112211), we get a palindrome (44242224244).

The spelling of 11221112033 in words is "eleven billion, two hundred twenty-one million, one hundred twelve thousand, thirty-three".