111200021220221 has 8 divisors (see below), whose sum is σ = 112849580473344. Its totient is φ = 109561422494160.

The previous prime is 111200021220193. The next prime is 111200021220251. The reversal of 111200021220221 is 122022120002111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111200021220221 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 111200021220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111200021220251) 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, 2740111325 + ... + 2740151906.

It is an arithmetic number, because the mean of its divisors is an integer number (14106197559168).

Almost surely, 2^{111200021220221} is an apocalyptic number.

It is an amenable number.

111200021220221 is a deficient number, since it is larger than the sum of its proper divisors (1649559253123).

111200021220221 is a wasteful number, since it uses less digits than its factorization.

111200021220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5480263531.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111200021220221 its reverse (122022120002111), we get a palindrome (233222141222332).

The spelling of 111200021220221 in words is "one hundred eleven trillion, two hundred billion, twenty-one million, two hundred twenty thousand, two hundred twenty-one".