111001412221 has 8 divisors (see below), whose sum is σ = 126926357760. Its totient is φ = 95093366928.

The previous prime is 111001412209. The next prime is 111001412233. The reversal of 111001412221 is 122214100111.

It is an interprime number because it is at equal distance from previous prime (111001412209) and next prime (111001412233).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111001412221 - 2⁵ = 111001412189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111001412195 and 111001412204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111001412201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4210981 + ... + 4237258.

It is an arithmetic number, because the mean of its divisors is an integer number (15865794720).

Almost surely, 2^111001412221 is an apocalyptic number.

It is an amenable number.

111001412221 is a deficient number, since it is larger than the sum of its proper divisors (15924945539).

111001412221 is an equidigital number, since it uses as much as digits as its factorization.

111001412221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8450123.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111001412221 its reverse (122214100111), we get a palindrome (233215512332).

The spelling of 111001412221 in words is "one hundred eleven billion, one million, four hundred twelve thousand, two hundred twenty-one".