11121122233 has 12 divisors (see below), whose sum is σ = 12222148368. Its totient is φ = 10112422320.

The previous prime is 11121122231. The next prime is 11121122269. The reversal of 11121122233 is 33222112111.

It is not a de Polignac number, because 11121122233 - 2¹ = 11121122231 is a prime.

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 11121122233.

It is not an unprimeable number, because it can be changed into a prime (11121122231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 479763 + ... + 502408.

It is an arithmetic number, because the mean of its divisors is an integer number (1018512364).

Almost surely, 2^11121122233 is an apocalyptic number.

11121122233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11121122233 is a deficient number, since it is larger than the sum of its proper divisors (1101026135).

11121122233 is an equidigital number, since it uses as much as digits as its factorization.

11121122233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982264 (or 982251 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

Adding to 11121122233 its reverse (33222112111), we get a palindrome (44343234344).

The spelling of 11121122233 in words is "eleven billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred thirty-three".