111101221233 has 24 divisors (see below), whose sum is σ = 168649797888. Its totient is φ = 70389702432.

The previous prime is 111101221223. The next prime is 111101221247. The reversal of 111101221233 is 332122101111.

111101221233 is a `hidden beast` number, since 111 + 101 + 221 + 233 = 666.

It is not a de Polignac number, because 111101221233 - 2⁶ = 111101221169 is a prime.

It is a super-3 number, since 3×111101221233³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (111101221223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3865185 + ... + 3893822.

It is an arithmetic number, because the mean of its divisors is an integer number (7027074912).

Almost surely, 2^111101221233 is an apocalyptic number.

It is an amenable number.

111101221233 is a deficient number, since it is larger than the sum of its proper divisors (57548576655).

111101221233 is a wasteful number, since it uses less digits than its factorization.

111101221233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7759093 (or 7759090 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 111101221233 its reverse (332122101111), we get a palindrome (443223322344).

The spelling of 111101221233 in words is "one hundred eleven billion, one hundred one million, two hundred twenty-one thousand, two hundred thirty-three".