111102122020 has 48 divisors (see below), whose sum is σ = 244232948736. Its totient is φ = 42401520000.

The previous prime is 111102122011. The next prime is 111102122057. The reversal of 111102122020 is 20221201111.

111102122020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 1217931 + ... + 1305970.

It is an arithmetic number, because the mean of its divisors is an integer number (5088186432).

Almost surely, 2^111102122020 is an apocalyptic number.

111102122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111102122020 is an abundant number, since it is smaller than the sum of its proper divisors (133130826716).

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

111102122020 is a wasteful number, since it uses less digits than its factorization.

111102122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524012 (or 2524010 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111102122020 its reverse (20221201111), we get a palindrome (131323323131).

The spelling of 111102122020 in words is "one hundred eleven billion, one hundred two million, one hundred twenty-two thousand, twenty".