111102020202020 has 24 divisors (see below), whose sum is σ = 247038609626424. Its totient is φ = 41826642899456.

The previous prime is 111102020202011. The next prime is 111102020202179. The reversal of 111102020202020 is 20202020201111.

111102020202020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2556794604004 + 108545225598016 = 1598998^2 + 10418504^2 .

It is a super-2 number, since 2×111102020202020² (a number of 29 digits) contains 22 as substring.

111102020202020 is a modest number, since divided by 20202020 gives 1111020 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 111102020201986 and 111102020202004.

It is an unprimeable number.

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, 163385323487 + ... + 163385324166.

It is an arithmetic number, because the mean of its divisors is an integer number (10293275401101).

Almost surely, 2^{111102020202020} is an apocalyptic number.

111102020202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111102020202020 is an abundant number, since it is smaller than the sum of its proper divisors (135936589424404).

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

111102020202020 is a wasteful number, since it uses less digits than its factorization.

111102020202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326770647679 (or 326770647677 counting only the distinct ones).

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

Adding to 111102020202020 its reverse (20202020201111), we get a palindrome (131304040403131).

Subtracting from 111102020202020 its reverse (20202020201111), we obtain a palindrome (90900000000909).

The spelling of 111102020202020 in words is "one hundred eleven trillion, one hundred two billion, twenty million, two hundred two thousand, twenty".