111201020112 has 320 divisors, whose sum is σ = 366391549440. Its totient is φ = 28277932032.

The previous prime is 111201020081. The next prime is 111201020129. The reversal of 111201020112 is 211020102111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18259564 + ... + 18265652.

It is an arithmetic number, because the mean of its divisors is an integer number (1144973592).

Almost surely, 2^111201020112 is an apocalyptic number.

111201020112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111201020112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183195774720).

111201020112 is an abundant number, since it is smaller than the sum of its proper divisors (255190529328).

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

111201020112 is a wasteful number, since it uses less digits than its factorization.

111201020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6270 (or 6264 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111201020112 its reverse (211020102111), we get a palindrome (322221122223).

The spelling of 111201020112 in words is "one hundred eleven billion, two hundred one million, twenty thousand, one hundred twelve".