111200220002020 has 24 divisors (see below), whose sum is σ = 236144287423800. Its totient is φ = 43980311730432.

The previous prime is 111200220001987. The next prime is 111200220002029. The reversal of 111200220002020 is 20200022002111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6515031631936 + 104685188370084 = 2552456^2 + 10231578^2 .

It is not an unprimeable number, because it can be changed into a prime (111200220002029) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 31236015075 + ... + 31236018634.

It is an arithmetic number, because the mean of its divisors is an integer number (9839345309325).

Almost surely, 2^{111200220002020} is an apocalyptic number.

111200220002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111200220002020 is an abundant number, since it is smaller than the sum of its proper divisors (124944067421780).

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

111200220002020 is a wasteful number, since it uses less digits than its factorization.

111200220002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62472033807 (or 62472033805 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 111200220002020 its reverse (20200022002111), we get a palindrome (131400242004131).

The spelling of 111200220002020 in words is "one hundred eleven trillion, two hundred billion, two hundred twenty million, two thousand, twenty".