11011221012233 has 4 divisors (see below), whose sum is σ = 11858238013188. Its totient is φ = 10164204011280.

The previous prime is 11011221012217. The next prime is 11011221012269. The reversal of 11011221012233 is 33221012211011.

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 4454328438784 + 6556892573449 = 2110528^2 + 2560643^2 .

It is a cyclic number.

It is not a de Polignac number, because 11011221012233 - 2⁴ = 11011221012217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11011221012293) 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, 423508500458 + ... + 423508500483.

It is an arithmetic number, because the mean of its divisors is an integer number (2964559503297).

Almost surely, 2^{11011221012233} is an apocalyptic number.

11011221012233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11011221012233 is a deficient number, since it is larger than the sum of its proper divisors (847017000955).

11011221012233 is an equidigital number, since it uses as much as digits as its factorization.

11011221012233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847017000954.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 11011221012233 its reverse (33221012211011), we get a palindrome (44232233223244).

The spelling of 11011221012233 in words is "eleven trillion, eleven billion, two hundred twenty-one million, twelve thousand, two hundred thirty-three".