111120121002220 has 48 divisors (see below), whose sum is σ = 255299715433728. Its totient is φ = 40290869101760.

The previous prime is 111120121002217. The next prime is 111120121002257. The reversal of 111120121002220 is 22200121021111.

It is a junction number, because it is equal to n+sod(n) for n = 111120121002194 and 111120121002203.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 727721152 + ... + 727873831.

It is an arithmetic number, because the mean of its divisors is an integer number (5318744071536).

Almost surely, 2^{111120121002220} is an apocalyptic number.

111120121002220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111120121002220 is an abundant number, since it is smaller than the sum of its proper divisors (144179594431508).

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

111120121002220 is a wasteful number, since it uses less digits than its factorization.

111120121002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455595350 (or 1455595348 counting only the distinct ones).

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

Adding to 111120121002220 its reverse (22200121021111), we get a palindrome (133320242023331).

The spelling of 111120121002220 in words is "one hundred eleven trillion, one hundred twenty billion, one hundred twenty-one million, two thousand, two hundred twenty".