111100220221 has 8 divisors (see below), whose sum is σ = 111200330304. Its totient is φ = 111000148320.

The previous prime is 111100220219. The next prime is 111100220239. The reversal of 111100220221 is 122022001111.

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 111100220221 - 2¹ = 111100220219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100220321) 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, 10355566 + ... + 10366288.

It is an arithmetic number, because the mean of its divisors is an integer number (13900041288).

Almost surely, 2^111100220221 is an apocalyptic number.

It is an amenable number.

111100220221 is a deficient number, since it is larger than the sum of its proper divisors (100110083).

111100220221 is a wasteful number, since it uses less digits than its factorization.

111100220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19091.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111100220221 its reverse (122022001111), we get a palindrome (233122221332).

The spelling of 111100220221 in words is "one hundred eleven billion, one hundred million, two hundred twenty thousand, two hundred twenty-one".