111100332232221 has 16 divisors (see below), whose sum is σ = 155938335436800. Its totient is φ = 70165010820528.

The previous prime is 111100332232213. The next prime is 111100332232243. The reversal of 111100332232221 is 122232233001111.

It is not a de Polignac number, because 111100332232221 - 2³ = 111100332232213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111100332232191 and 111100332232200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100332632221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49163901 + ... + 51374018.

It is an arithmetic number, because the mean of its divisors is an integer number (9746145964800).

Almost surely, 2^{111100332232221} is an apocalyptic number.

It is an amenable number.

111100332232221 is a deficient number, since it is larger than the sum of its proper divisors (44838003204579).

111100332232221 is a wasteful number, since it uses less digits than its factorization.

111100332232221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100557328.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 111100332232221 its reverse (122232233001111), we get a palindrome (233332565233332).

The spelling of 111100332232221 in words is "one hundred eleven trillion, one hundred billion, three hundred thirty-two million, two hundred thirty-two thousand, two hundred twenty-one".