111102213123221 has 8 divisors (see below), whose sum is σ = 111336494453184. Its totient is φ = 110868175712160.

The previous prime is 111102213123151. The next prime is 111102213123229. The reversal of 111102213123221 is 122321312201111.

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 111102213123221 - 2²² = 111102208928917 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 (111102213123229) 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, 60067775 + ... + 61889756.

It is an arithmetic number, because the mean of its divisors is an integer number (13917061806648).

Almost surely, 2^{111102213123221} is an apocalyptic number.

It is an amenable number.

111102213123221 is a deficient number, since it is larger than the sum of its proper divisors (234281329963).

111102213123221 is a wasteful number, since it uses less digits than its factorization.

111102213123221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121959451.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 111102213123221 its reverse (122321312201111), we get a palindrome (233423525324332).

The spelling of 111102213123221 in words is "one hundred eleven trillion, one hundred two billion, two hundred thirteen million, one hundred twenty-three thousand, two hundred twenty-one".