11220220120 has 32 divisors (see below), whose sum is σ = 25269340320. Its totient is φ = 4483848960.

The previous prime is 11220220103. The next prime is 11220220171. The reversal of 11220220120 is 2102202211.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11220220120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89421 + ... + 174460.

It is an arithmetic number, because the mean of its divisors is an integer number (789666885).

Almost surely, 2^11220220120 is an apocalyptic number.

11220220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11220220120 is an abundant number, since it is smaller than the sum of its proper divisors (14049120200).

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

11220220120 is a wasteful number, since it uses less digits than its factorization.

11220220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264955 (or 264951 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 11220220120 its reverse (2102202211), we get a palindrome (13322422331).

The spelling of 11220220120 in words is "eleven billion, two hundred twenty million, two hundred twenty thousand, one hundred twenty".