111120212120202 has 48 divisors (see below), whose sum is σ = 243156589615368. Its totient is φ = 36671472614400.

The previous prime is 111120212120129. The next prime is 111120212120273. The reversal of 111120212120202 is 202021212021111.

111120212120202 is a `hidden beast` number, since 1 + 11 + 120 + 212 + 120 + 202 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 91126516932441 + 19993695187761 = 9546021^2 + 4471431^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34439638 + ... + 37527710.

Almost surely, 2^{111120212120202} is an apocalyptic number.

111120212120202 is an abundant number, since it is smaller than the sum of its proper divisors (132036377495166).

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

111120212120202 is a wasteful number, since it uses less digits than its factorization.

111120212120202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3107975 (or 3107972 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 111120212120202 its reverse (202021212021111), we get a palindrome (313141424141313).

Subtracting 111120212120202 from its reverse (202021212021111), we obtain a palindrome (90900999900909).

The spelling of 111120212120202 in words is "one hundred eleven trillion, one hundred twenty billion, two hundred twelve million, one hundred twenty thousand, two hundred two".