11120121120220 has 96 divisors (see below), whose sum is σ = 27415985651712. Its totient is φ = 3708704579328.

The previous prime is 11120121120203. The next prime is 11120121120221. The reversal of 11120121120220 is 2202112102111.

It is a junction number, because it is equal to n+sod(n) for n = 11120121120194 and 11120121120203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120121120221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22165797 + ... + 22661923.

It is an arithmetic number, because the mean of its divisors is an integer number (285583183872).

Almost surely, 2^{11120121120220} is an apocalyptic number.

11120121120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11120121120220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13707992825856).

11120121120220 is an abundant number, since it is smaller than the sum of its proper divisors (16295864531492).

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

11120121120220 is a wasteful number, since it uses less digits than its factorization.

11120121120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500507 (or 500505 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11120121120220 its reverse (2202112102111), we get a palindrome (13322233222331).

The spelling of 11120121120220 in words is "eleven trillion, one hundred twenty billion, one hundred twenty-one million, one hundred twenty thousand, two hundred twenty".