11220033553 has 4 divisors (see below), whose sum is σ = 11335704100. Its totient is φ = 11104363008.

The previous prime is 11220033551. The next prime is 11220033563. The reversal of 11220033553 is 35533002211.

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 4362206209 + 6857827344 = 66047^2 + 82812^2 .

It is a cyclic number.

It is not a de Polignac number, because 11220033553 - 2¹ = 11220033551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11220033551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57835128 + ... + 57835321.

It is an arithmetic number, because the mean of its divisors is an integer number (2833926025).

Almost surely, 2^11220033553 is an apocalyptic number.

It is an amenable number.

11220033553 is a deficient number, since it is larger than the sum of its proper divisors (115670547).

11220033553 is an equidigital number, since it uses as much as digits as its factorization.

11220033553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115670546.

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 11220033553 its reverse (35533002211), we get a palindrome (46753035764).

The spelling of 11220033553 in words is "eleven billion, two hundred twenty million, thirty-three thousand, five hundred fifty-three".