111201200020020 has 96 divisors (see below), whose sum is σ = 339729538498560. Its totient is φ = 26953071557760.

The previous prime is 111201200019887. The next prime is 111201200020039. The reversal of 111201200020020 is 20020002102111.

111201200020020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 111201200019978 and 111201200020005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11270740 + ... + 18693099.

It is an arithmetic number, because the mean of its divisors is an integer number (3538849359360).

Almost surely, 2^{111201200020020} is an apocalyptic number.

111201200020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111201200020020 is an abundant number, since it is smaller than the sum of its proper divisors (228528338478540).

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

111201200020020 is a wasteful number, since it uses less digits than its factorization.

111201200020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29969485 (or 29969483 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 111201200020020 its reverse (20020002102111), we get a palindrome (131221202122131).

The spelling of 111201200020020 in words is "one hundred eleven trillion, two hundred one billion, two hundred million, twenty thousand, twenty".