111233121222 has 8 divisors (see below), whose sum is σ = 222466242456. Its totient is φ = 37077707072.

The previous prime is 111233121179. The next prime is 111233121227. The reversal of 111233121222 is 222121332111.

It is a sphenic number, since it is the product of 3 distinct primes.

111233121222 is an admirable number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111233121227) 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 3 ways as a sum of consecutive naturals, for example, 9269426763 + ... + 9269426774.

It is an arithmetic number, because the mean of its divisors is an integer number (27808280307).

Almost surely, 2^111233121222 is an apocalyptic number.

111233121222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111233121222 is a wasteful number, since it uses less digits than its factorization.

111233121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18538853542.

The product of its digits is 288, while the sum is 21.

Adding to 111233121222 its reverse (222121332111), we get a palindrome (333354453333).

The spelling of 111233121222 in words is "one hundred eleven billion, two hundred thirty-three million, one hundred twenty-one thousand, two hundred twenty-two".