111202220120 has 64 divisors (see below), whose sum is σ = 250746649920. Its totient is φ = 44384730624.

The previous prime is 111202220119. The next prime is 111202220123. The reversal of 111202220120 is 21022202111.

It is a junction number, because it is equal to n+sod(n) for n = 111202220095 and 111202220104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111202220123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68940434 + ... + 68942046.

It is an arithmetic number, because the mean of its divisors is an integer number (3917916405).

Almost surely, 2^111202220120 is an apocalyptic number.

111202220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111202220120 is an abundant number, since it is smaller than the sum of its proper divisors (139544429800).

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

111202220120 is a wasteful number, since it uses less digits than its factorization.

111202220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4284 (or 4280 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 111202220120 its reverse (21022202111), we get a palindrome (132224422231).

The spelling of 111202220120 in words is "one hundred eleven billion, two hundred two million, two hundred twenty thousand, one hundred twenty".