111222222202120 has 32 divisors (see below), whose sum is σ = 250363389369600. Its totient is φ = 44468730762688.

The previous prime is 111222222202097. The next prime is 111222222202129. The reversal of 111222222202120 is 21202222222111.

It is a junction number, because it is equal to n+sod(n) for n = 111222222202091 and 111222222202100.

It is not an unprimeable number, because it can be changed into a prime (111222222202129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 629851810 + ... + 630028369.

It is an arithmetic number, because the mean of its divisors is an integer number (7823855917800).

Almost surely, 2^{111222222202120} is an apocalyptic number.

111222222202120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111222222202120 is an abundant number, since it is smaller than the sum of its proper divisors (139141167167480).

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

111222222202120 is a wasteful number, since it uses less digits than its factorization.

111222222202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259882397 (or 1259882393 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 111222222202120 its reverse (21202222222111), we get a palindrome (132424444424231).

The spelling of 111222222202120 in words is "one hundred eleven trillion, two hundred twenty-two billion, two hundred twenty-two million, two hundred two thousand, one hundred twenty".