111333502040221 has 16 divisors (see below), whose sum is σ = 120187860370560. Its totient is φ = 102814099375680.

The previous prime is 111333502040213. The next prime is 111333502040303. The reversal of 111333502040221 is 122040205333111.

It is a cyclic number.

It is not a de Polignac number, because 111333502040221 - 2³ = 111333502040213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111333502040221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111333502040021) 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, 4946986 + ... + 15720676.

It is an arithmetic number, because the mean of its divisors is an integer number (7511741273160).

Almost surely, 2^{111333502040221} is an apocalyptic number.

It is an amenable number.

111333502040221 is a deficient number, since it is larger than the sum of its proper divisors (8854358330339).

111333502040221 is a wasteful number, since it uses less digits than its factorization.

111333502040221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10789236.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 111333502040221 its reverse (122040205333111), we get a palindrome (233373707373332).

The spelling of 111333502040221 in words is "one hundred eleven trillion, three hundred thirty-three billion, five hundred two million, forty thousand, two hundred twenty-one".