11211201333 has 28 divisors (see below), whose sum is σ = 16819499340. Its totient is φ = 7469516736.

The previous prime is 11211201283. The next prime is 11211201343. The reversal of 11211201333 is 33310211211.

It can be written as a sum of positive squares in 2 ways, for example, as 1155524049 + 10055677284 = 33993^2 + 100278^2 .

It is not a de Polignac number, because 11211201333 - 2⁶ = 11211201269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211201343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1504585 + ... + 1512017.

It is an arithmetic number, because the mean of its divisors is an integer number (600696405).

Almost surely, 2^11211201333 is an apocalyptic number.

It is an amenable number.

11211201333 is a deficient number, since it is larger than the sum of its proper divisors (5608298007).

11211201333 is an frugal number, since it uses more digits than its factorization.

11211201333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9520 (or 9505 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11211201333 its reverse (33310211211), we get a palindrome (44521412544).

The spelling of 11211201333 in words is "eleven billion, two hundred eleven million, two hundred one thousand, three hundred thirty-three".