111310301221 has 8 divisors (see below), whose sum is σ = 131598385920. Its totient is φ = 92118869808.

The previous prime is 111310301213. The next prime is 111310301237. The reversal of 111310301221 is 122103013111.

It is a happy number.

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

It is not a de Polignac number, because 111310301221 - 2³ = 111310301213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111310301195 and 111310301204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111310301281) 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, 274163101 + ... + 274163506.

It is an arithmetic number, because the mean of its divisors is an integer number (16449798240).

Almost surely, 2^111310301221 is an apocalyptic number.

It is an amenable number.

111310301221 is a deficient number, since it is larger than the sum of its proper divisors (20288084699).

111310301221 is an equidigital number, since it uses as much as digits as its factorization.

111310301221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548326643.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 111310301221 its reverse (122103013111), we get a palindrome (233413314332).

The spelling of 111310301221 in words is "one hundred eleven billion, three hundred ten million, three hundred one thousand, two hundred twenty-one".