11133221020 has 48 divisors (see below), whose sum is σ = 23944779936. Its totient is φ = 4346784000.

The previous prime is 11133221003. The next prime is 11133221023. The reversal of 11133221020 is 2012233111.

It is a super-2 number, since 2×11133221020² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11133220985 and 11133221003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11133221023) 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 15 ways as a sum of consecutive naturals, for example, 124990 + ... + 194650.

It is an arithmetic number, because the mean of its divisors is an integer number (498849582).

Almost surely, 2^11133221020 is an apocalyptic number.

11133221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11133221020 is an abundant number, since it is smaller than the sum of its proper divisors (12811558916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11133221020 is a wasteful number, since it uses less digits than its factorization.

11133221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69862 (or 69860 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11133221020 its reverse (2012233111), we get a palindrome (13145454131).

The spelling of 11133221020 in words is "eleven billion, one hundred thirty-three million, two hundred twenty-one thousand, twenty".