11101442220 has 72 divisors (see below), whose sum is σ = 36735688080. Its totient is φ = 2691258240.

The previous prime is 11101442207. The next prime is 11101442243. The reversal of 11101442220 is 2224410111.

11101442220 is a `hidden beast` number, since 1 + 1 + 1 + 0 + 1 + 442 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11101442193 and 11101442202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2801415 + ... + 2805374.

It is an arithmetic number, because the mean of its divisors is an integer number (510217890).

Almost surely, 2^11101442220 is an apocalyptic number.

11101442220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11101442220 is an abundant number, since it is smaller than the sum of its proper divisors (25634245860).

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

11101442220 is a wasteful number, since it uses less digits than its factorization.

11101442220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5606815 (or 5606810 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11101442220 its reverse (2224410111), we get a palindrome (13325852331).

The spelling of 11101442220 in words is "eleven billion, one hundred one million, four hundred forty-two thousand, two hundred twenty".