11021223133 has 4 divisors (see below), whose sum is σ = 11401265340. Its totient is φ = 10641180928.

The previous prime is 11021223127. The next prime is 11021223139. The reversal of 11021223133 is 33132212011.

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

It is an interprime number because it is at equal distance from previous prime (11021223127) and next prime (11021223139).

It can be written as a sum of positive squares in 2 ways, for example, as 5784819364 + 5236403769 = 76058^2 + 72363^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11021223133 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 11021223133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021223139) 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, 190021060 + ... + 190021117.

It is an arithmetic number, because the mean of its divisors is an integer number (2850316335).

Almost surely, 2^11021223133 is an apocalyptic number.

It is an amenable number.

11021223133 is a deficient number, since it is larger than the sum of its proper divisors (380042207).

11021223133 is an equidigital number, since it uses as much as digits as its factorization.

11021223133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380042206.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11021223133 its reverse (33132212011), we get a palindrome (44153435144).

The spelling of 11021223133 in words is "eleven billion, twenty-one million, two hundred twenty-three thousand, one hundred thirty-three".