111200102212121 has 8 divisors (see below), whose sum is σ = 120615495483840. Its totient is φ = 101907785976912.

The previous prime is 111200102212109. The next prime is 111200102212153. The reversal of 111200102212121 is 121212201002111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111200102212121 - 2³⁰ = 111199028470297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111200102212121.

It is not an unprimeable number, because it can be changed into a prime (111200102202121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30769257245 + ... + 30769260858.

It is an arithmetic number, because the mean of its divisors is an integer number (15076936935480).

Almost surely, 2^{111200102212121} is an apocalyptic number.

It is an amenable number.

111200102212121 is a deficient number, since it is larger than the sum of its proper divisors (9415393271719).

111200102212121 is a wasteful number, since it uses less digits than its factorization.

111200102212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61538518255.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111200102212121 its reverse (121212201002111), we get a palindrome (232412303214232).

The spelling of 111200102212121 in words is "one hundred eleven trillion, two hundred billion, one hundred two million, two hundred twelve thousand, one hundred twenty-one".