111200210020221 has 12 divisors (see below), whose sum is σ = 172473795133632. Its totient is φ = 63542977154328.

The previous prime is 111200210020219. The next prime is 111200210020259. The reversal of 111200210020221 is 122020012002111.

It is not a de Polignac number, because 111200210020221 - 2¹ = 111200210020219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111200210020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111200210020201) 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, 378232006725 + ... + 378232007018.

It is an arithmetic number, because the mean of its divisors is an integer number (14372816261136).

Almost surely, 2^{111200210020221} is an apocalyptic number.

It is an amenable number.

111200210020221 is a deficient number, since it is larger than the sum of its proper divisors (61273585113411).

111200210020221 is an equidigital number, since it uses as much as digits as its factorization.

111200210020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756464013760 (or 756464013753 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 111200210020221 its reverse (122020012002111), we get a palindrome (233220222022332).

The spelling of 111200210020221 in words is "one hundred eleven trillion, two hundred billion, two hundred ten million, twenty thousand, two hundred twenty-one".