111200101221 has 24 divisors (see below), whose sum is σ = 168590651040. Its totient is φ = 65070063520.

The previous prime is 111200101213. The next prime is 111200101273. The reversal of 111200101221 is 122101002111.

It is not a de Polignac number, because 111200101221 - 2³ = 111200101213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111200101197 and 111200101206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111200101211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5271135 + ... + 5292188.

It is an arithmetic number, because the mean of its divisors is an integer number (7024610460).

Almost surely, 2^111200101221 is an apocalyptic number.

111200101221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111200101221 is a deficient number, since it is larger than the sum of its proper divisors (57390549819).

111200101221 is a wasteful number, since it uses less digits than its factorization.

111200101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10563377 (or 10563366 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111200101221 its reverse (122101002111), we get a palindrome (233301103332).

The spelling of 111200101221 in words is "one hundred eleven billion, two hundred million, one hundred one thousand, two hundred twenty-one".