11120120220 has 72 divisors (see below), whose sum is σ = 34224260112. Its totient is φ = 2695784960.

The previous prime is 11120120203. The next prime is 11120120227. The reversal of 11120120220 is 2202102111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11120120196 and 11120120205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120120227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 758589 + ... + 773108.

It is an arithmetic number, because the mean of its divisors is an integer number (475336946).

Almost surely, 2^11120120220 is an apocalyptic number.

11120120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11120120220 is an abundant number, since it is smaller than the sum of its proper divisors (23104139892).

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

11120120220 is a wasteful number, since it uses less digits than its factorization.

11120120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531731 (or 1531718 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11120120220 its reverse (2202102111), we get a palindrome (13322222331).

The spelling of 11120120220 in words is "eleven billion, one hundred twenty million, one hundred twenty thousand, two hundred twenty".