111200211221 has 8 divisors (see below), whose sum is σ = 121403448000. Its totient is φ = 101012662240.

The previous prime is 111200211211. The next prime is 111200211233. The reversal of 111200211221 is 122112002111.

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 111200211221 - 2¹⁰ = 111200210197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111200211196 and 111200211205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111200211211) 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, 3907121 + ... + 3935478.

It is an arithmetic number, because the mean of its divisors is an integer number (15175431000).

Almost surely, 2^111200211221 is an apocalyptic number.

111200211221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111200211221 is a deficient number, since it is larger than the sum of its proper divisors (10203236779).

111200211221 is a wasteful number, since it uses less digits than its factorization.

111200211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7843899.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111200211221 its reverse (122112002111), we get a palindrome (233312213332).

The spelling of 111200211221 in words is "one hundred eleven billion, two hundred million, two hundred eleven thousand, two hundred twenty-one".