111222032221 has 8 divisors (see below), whose sum is σ = 114995937024. Its totient is φ = 107459758560.

The previous prime is 111222032219. The next prime is 111222032267. The reversal of 111222032221 is 122230222111.

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 111222032221 - 2¹ = 111222032219 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 (111222032291) 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, 2888335 + ... + 2926588.

It is an arithmetic number, because the mean of its divisors is an integer number (14374492128).

Almost surely, 2^111222032221 is an apocalyptic number.

It is an amenable number.

111222032221 is a deficient number, since it is larger than the sum of its proper divisors (3773904803).

111222032221 is an equidigital number, since it uses as much as digits as its factorization.

111222032221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5815571.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 111222032221 its reverse (122230222111), we get a palindrome (233452254332).

The spelling of 111222032221 in words is "one hundred eleven billion, two hundred twenty-two million, thirty-two thousand, two hundred twenty-one".