1122111122233 has 4 divisors (see below), whose sum is σ = 1123711852068. Its totient is φ = 1120510392400.

The previous prime is 1122111122189. The next prime is 1122111122267. The reversal of 1122111122233 is 3322211112211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 475971668649 + 646139453584 = 689907^2 + 803828^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122111122233 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1122111122533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800363866 + ... + 800365267.

It is an arithmetic number, because the mean of its divisors is an integer number (280927963017).

Almost surely, 2^{1122111122233} is an apocalyptic number.

It is an amenable number.

1122111122233 is a deficient number, since it is larger than the sum of its proper divisors (1600729835).

1122111122233 is an equidigital number, since it uses as much as digits as its factorization.

1122111122233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600729834.

The product of its digits is 288, while the sum is 22.

Adding to 1122111122233 its reverse (3322211112211), we get a palindrome (4444322234444).

The spelling of 1122111122233 in words is "one trillion, one hundred twenty-two billion, one hundred eleven million, one hundred twenty-two thousand, two hundred thirty-three".