111200101021100 has 72 divisors (see below), whose sum is σ = 296989808289888. Its totient is φ = 35192999001600.

The previous prime is 111200101021069. The next prime is 111200101021111. The reversal of 111200101021100 is 1120101002111.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6109886561 + ... + 6109904760.

Almost surely, 2^{111200101021100} is an apocalyptic number.

111200101021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111200101021100 is an abundant number, since it is smaller than the sum of its proper divisors (185789707268788).

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

111200101021100 is a wasteful number, since it uses less digits than its factorization.

111200101021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12219791355 (or 12219791348 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111200101021100 its reverse (1120101002111), we get a palindrome (112320202023211).

The spelling of 111200101021100 in words is "one hundred eleven trillion, two hundred billion, one hundred one million, twenty-one thousand, one hundred".