111201102102220 has 96 divisors (see below), whose sum is σ = 252803995678080. Its totient is φ = 40843986186240.

The previous prime is 111201102102217. The next prime is 111201102102341. The reversal of 111201102102220 is 22201201102111.

It is a junction number, because it is equal to n+sod(n) for n = 111201102102194 and 111201102102203.

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, 56618994 + ... + 58550086.

It is an arithmetic number, because the mean of its divisors is an integer number (2633374954980).

Almost surely, 2^{111201102102220} is an apocalyptic number.

111201102102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111201102102220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126401997839040).

111201102102220 is an abundant number, since it is smaller than the sum of its proper divisors (141602893575860).

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

111201102102220 is a wasteful number, since it uses less digits than its factorization.

111201102102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932275 (or 1932273 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111201102102220 its reverse (22201201102111), we get a palindrome (133402303204331).

The spelling of 111201102102220 in words is "one hundred eleven trillion, two hundred one billion, one hundred two million, one hundred two thousand, two hundred twenty".