111322121 has 8 divisors (see below), whose sum is σ = 117300000. Its totient is φ = 105356160.

The previous prime is 111322087. The next prime is 111322129. The reversal of 111322121 is 121223111.

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 111322121 - 2¹⁰ = 111321097 is a prime.

It is a super-2 number, since 2×111322121² = 24785229247877282, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111322096 and 111322105.

It is not an unprimeable number, because it can be changed into a prime (111322129) 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, 21386 + ... + 26076.

It is an arithmetic number, because the mean of its divisors is an integer number (14662500).

Almost surely, 2^111322121 is an apocalyptic number.

It is an amenable number.

111322121 is a deficient number, since it is larger than the sum of its proper divisors (5977879).

111322121 is a wasteful number, since it uses less digits than its factorization.

111322121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5959.

The product of its digits is 24, while the sum is 14.

The square root of 111322121 is about 10550.9298642347. The cubic root of 111322121 is about 481.0539932445.

Adding to 111322121 its reverse (121223111), we get a palindrome (232545232).

The spelling of 111322121 in words is "one hundred eleven million, three hundred twenty-two thousand, one hundred twenty-one".