111102220221100 has 36 divisors (see below), whose sum is σ = 241179520120000. Its totient is φ = 44424721776960.

The previous prime is 111102220220951. The next prime is 111102220221101. The reversal of 111102220221100 is 1122022201111.

It is not an unprimeable number, because it can be changed into a prime (111102220221101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 201802620 + ... + 202352419.

Almost surely, 2^{111102220221100} is an apocalyptic number.

111102220221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111102220221100 is an abundant number, since it is smaller than the sum of its proper divisors (130077299898900).

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

111102220221100 is a wasteful number, since it uses less digits than its factorization.

111102220221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404157802 (or 404157795 counting only the distinct ones).

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

Adding to 111102220221100 its reverse (1122022201111), we get a palindrome (112224242422211).

The spelling of 111102220221100 in words is "one hundred eleven trillion, one hundred two billion, two hundred twenty million, two hundred twenty-one thousand, one hundred".