11120012121220 has 12 divisors (see below), whose sum is σ = 23352025454604. Its totient is φ = 4448004848480.

The previous prime is 11120012121203. The next prime is 11120012121259. The reversal of 11120012121220 is 2212121002111.

It can be written as a sum of positive squares in 2 ways, for example, as 7599075116164 + 3520937005056 = 2756642^2 + 1876416^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11120012121194 and 11120012121203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278000303011 + ... + 278000303050.

It is an arithmetic number, because the mean of its divisors is an integer number (1946002121217).

Almost surely, 2^{11120012121220} is an apocalyptic number.

11120012121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11120012121220 is an abundant number, since it is smaller than the sum of its proper divisors (12232013333384).

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

11120012121220 is a wasteful number, since it uses less digits than its factorization.

11120012121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556000606070 (or 556000606068 counting only the distinct ones).

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

Adding to 11120012121220 its reverse (2212121002111), we get a palindrome (13332133123331).

The spelling of 11120012121220 in words is "eleven trillion, one hundred twenty billion, twelve million, one hundred twenty-one thousand, two hundred twenty".