111221301021013 has 8 divisors (see below), whose sum is σ = 111536731313496. Its totient is φ = 110906261356800.

The previous prime is 111221301020983. The next prime is 111221301021029. The reversal of 111221301021013 is 310120103122111.

It can be written as a sum of positive squares in 4 ways, for example, as 75365612107569 + 35855688913444 = 8681337^2 + 5987962^2 .

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 111221301021013 - 2⁵ = 111221301020981 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 (111221301021113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97086808 + ... + 98225713.

It is an arithmetic number, because the mean of its divisors is an integer number (13942091414187).

Almost surely, 2^{111221301021013} is an apocalyptic number.

It is an amenable number.

111221301021013 is a deficient number, since it is larger than the sum of its proper divisors (315430292483).

111221301021013 is a wasteful number, since it uses less digits than its factorization.

111221301021013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195314135.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 111221301021013 its reverse (310120103122111), we get a palindrome (421341404143124).

The spelling of 111221301021013 in words is "one hundred eleven trillion, two hundred twenty-one billion, three hundred one million, twenty-one thousand, thirteen".