111102322323221 has 4 divisors (see below), whose sum is σ = 111102414782700. Its totient is φ = 111102229863744.

The previous prime is 111102322323217. The next prime is 111102322323227. The reversal of 111102322323221 is 122323223201111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48565636899025 + 62536685424196 = 6968905^2 + 7908014^2 .

It is a cyclic number.

It is not a de Polignac number, because 111102322323221 - 2² = 111102322323217 is a prime.

It is a super-2 number, since 2×111102322323221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111102322323227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44403236 + ... + 46838573.

It is an arithmetic number, because the mean of its divisors is an integer number (27775603695675).

Almost surely, 2^{111102322323221} is an apocalyptic number.

It is an amenable number.

111102322323221 is a deficient number, since it is larger than the sum of its proper divisors (92459479).

111102322323221 is an equidigital number, since it uses as much as digits as its factorization.

111102322323221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92459478.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 111102322323221 its reverse (122323223201111), we get a palindrome (233425545524332).

The spelling of 111102322323221 in words is "one hundred eleven trillion, one hundred two billion, three hundred twenty-two million, three hundred twenty-three thousand, two hundred twenty-one".