11220220011220 has 48 divisors (see below), whose sum is σ = 25704867738816. Its totient is φ = 4080022272000.

The previous prime is 11220220011191. The next prime is 11220220011223. The reversal of 11220220011220 is 2211002202211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11220220011194 and 11220220011203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220220011223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17149300 + ... + 17791540.

It is an arithmetic number, because the mean of its divisors is an integer number (535518077892).

Almost surely, 2^{11220220011220} is an apocalyptic number.

11220220011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11220220011220 is an abundant number, since it is smaller than the sum of its proper divisors (14484647727596).

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

11220220011220 is a wasteful number, since it uses less digits than its factorization.

11220220011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721672 (or 721670 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11220220011220 its reverse (2211002202211), we get a palindrome (13431222213431).

The spelling of 11220220011220 in words is "eleven trillion, two hundred twenty billion, two hundred twenty million, eleven thousand, two hundred twenty".