11112220033 has 4 divisors (see below), whose sum is σ = 11112893440. Its totient is φ = 11111546628.

The previous prime is 11112220019. The next prime is 11112220039. The reversal of 11112220033 is 33002221111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11112220033 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 11112219989 and 11112220016.

It is not an unprimeable number, because it can be changed into a prime (11112220039) 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, 311313 + ... + 345166.

It is an arithmetic number, because the mean of its divisors is an integer number (2778223360).

Almost surely, 2^11112220033 is an apocalyptic number.

It is an amenable number.

11112220033 is a deficient number, since it is larger than the sum of its proper divisors (673407).

11112220033 is an equidigital number, since it uses as much as digits as its factorization.

11112220033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673406.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11112220033 its reverse (33002221111), we get a palindrome (44114441144).

The spelling of 11112220033 in words is "eleven billion, one hundred twelve million, two hundred twenty thousand, thirty-three".