111222033012 has 48 divisors (see below), whose sum is σ = 288853326720. Its totient is φ = 37009737216.

The previous prime is 111222033011. The next prime is 111222033017. The reversal of 111222033012 is 210330222111.

111222033012 is a `hidden beast` number, since 1 + 112 + 220 + 330 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111222033011) 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 15 ways as a sum of consecutive naturals, for example, 830088 + ... + 954719.

It is an arithmetic number, because the mean of its divisors is an integer number (6017777640).

Almost surely, 2^111222033012 is an apocalyptic number.

111222033012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111222033012 is an abundant number, since it is smaller than the sum of its proper divisors (177631293708).

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

111222033012 is a wasteful number, since it uses less digits than its factorization.

111222033012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785397 (or 1785389 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 111222033012 its reverse (210330222111), we get a palindrome (321552255123).

The spelling of 111222033012 in words is "one hundred eleven billion, two hundred twenty-two million, thirty-three thousand, twelve".