111110022111220 has 24 divisors (see below), whose sum is σ = 254542959746208. Its totient is φ = 40403644404000.

The previous prime is 111110022111163. The next prime is 111110022111247. The reversal of 111110022111220 is 22111220011111.

It is a junction number, because it is equal to n+sod(n) for n = 111110022111194 and 111110022111203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252522777306 + ... + 252522777745.

It is an arithmetic number, because the mean of its divisors is an integer number (10605956656092).

Almost surely, 2^{111110022111220} is an apocalyptic number.

111110022111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111110022111220 is an abundant number, since it is smaller than the sum of its proper divisors (143432937634988).

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

111110022111220 is a wasteful number, since it uses less digits than its factorization.

111110022111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505045555071 (or 505045555069 counting only the distinct ones).

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

Adding to 111110022111220 its reverse (22111220011111), we get a palindrome (133221242122331).

The spelling of 111110022111220 in words is "one hundred eleven trillion, one hundred ten billion, twenty-two million, one hundred eleven thousand, two hundred twenty".