111413221 has 2 divisors, whose sum is σ = 111413222. Its totient is φ = 111413220.

The previous prime is 111413209. The next prime is 111413233. The reversal of 111413221 is 122314111.

It is a balanced prime because it is at equal distance from previous prime (111413209) and next prime (111413233).

It can be written as a sum of positive squares in only one way, i.e., 102232321 + 9180900 = 10111^2 + 3030^2 .

It is a cyclic number.

It is not a de Polignac number, because 111413221 - 2¹¹ = 111411173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111413195 and 111413204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111413021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55706610 + 55706611.

It is an arithmetic number, because the mean of its divisors is an integer number (55706611).

Almost surely, 2^111413221 is an apocalyptic number.

It is an amenable number.

111413221 is a deficient number, since it is larger than the sum of its proper divisors (1).

111413221 is an equidigital number, since it uses as much as digits as its factorization.

111413221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48, while the sum is 16.

The square root of 111413221 is about 10555.2461364006. The cubic root of 111413221 is about 481.1851803180.

Adding to 111413221 its reverse (122314111), we get a palindrome (233727332).

The spelling of 111413221 in words is "one hundred eleven million, four hundred thirteen thousand, two hundred twenty-one".