11220120122220 has 144 divisors (see below), whose sum is σ = 34085126799360. Its totient is φ = 2987571788928.

The previous prime is 11220120122213. The next prime is 11220120122327. The reversal of 11220120122220 is 2222102102211.

It is a happy number.

11220120122220 is a `hidden beast` number, since 1 + 1 + 220 + 1 + 201 + 22 + 220 = 666.

It is a super-2 number, since 2×11220120122220² (a number of 27 digits) contains 22 as substring.

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 = 11220120122193 and 11220120122202.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 547873941 + ... + 547894419.

It is an arithmetic number, because the mean of its divisors is an integer number (236702269440).

Almost surely, 2^{11220120122220} is an apocalyptic number.

11220120122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11220120122220 is an abundant number, since it is smaller than the sum of its proper divisors (22865006677140).

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

11220120122220 is a wasteful number, since it uses less digits than its factorization.

11220120122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24884 (or 24879 counting only the distinct ones).

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

Adding to 11220120122220 its reverse (2222102102211), we get a palindrome (13442222224431).

The spelling of 11220120122220 in words is "eleven trillion, two hundred twenty billion, one hundred twenty million, one hundred twenty-two thousand, two hundred twenty".