11233442220 has 384 divisors, whose sum is σ = 43040471040. Its totient is φ = 2113413120.

The previous prime is 11233442203. The next prime is 11233442221. The reversal of 11233442220 is 2224433211.

It is a happy number.

11233442220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11233442220² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11233442221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3181416 + ... + 3184944.

It is an arithmetic number, because the mean of its divisors is an integer number (112084560).

Almost surely, 2^11233442220 is an apocalyptic number.

11233442220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11233442220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21520235520).

11233442220 is an abundant number, since it is smaller than the sum of its proper divisors (31807028820).

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

11233442220 is a wasteful number, since it uses less digits than its factorization.

11233442220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3625 (or 3623 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 11233442220 its reverse (2224433211), we get a palindrome (13457875431).

Subtracting from 11233442220 its reverse (2224433211), we obtain a palindrome (9009009009).

The spelling of 11233442220 in words is "eleven billion, two hundred thirty-three million, four hundred forty-two thousand, two hundred twenty".