11220202056 has 128 divisors (see below), whose sum is σ = 33501081600. Its totient is φ = 3061850880.

The previous prime is 11220202001. The next prime is 11220202057. The reversal of 11220202056 is 65020202211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (11220202057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3240166 + ... + 3243626.

It is an arithmetic number, because the mean of its divisors is an integer number (261727200).

Almost surely, 2^11220202056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11220202056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16750540800).

11220202056 is an abundant number, since it is smaller than the sum of its proper divisors (22280879544).

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

11220202056 is a wasteful number, since it uses less digits than its factorization.

11220202056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4339 (or 4335 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 11220202056 its reverse (65020202211), we get a palindrome (76240404267).

The spelling of 11220202056 in words is "eleven billion, two hundred twenty million, two hundred two thousand, fifty-six".