111120133212 has 36 divisors (see below), whose sum is σ = 306422186616. Its totient is φ = 33672767520.

The previous prime is 111120133181. The next prime is 111120133213. The reversal of 111120133212 is 212331021111.

It is a tau number, because it is divible by the number of its divisors (36).

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 (111120133213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140302803 + ... + 140303594.

It is an arithmetic number, because the mean of its divisors is an integer number (8511727406).

Almost surely, 2^111120133212 is an apocalyptic number.

111120133212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111120133212 is an abundant number, since it is smaller than the sum of its proper divisors (195302053404).

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

111120133212 is a wasteful number, since it uses less digits than its factorization.

111120133212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280606418 (or 280606413 counting only the distinct ones).

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

Adding to 111120133212 its reverse (212331021111), we get a palindrome (323451154323).

The spelling of 111120133212 in words is "one hundred eleven billion, one hundred twenty million, one hundred thirty-three thousand, two hundred twelve".