111201111012 has 12 divisors (see below), whose sum is σ = 259469259056. Its totient is φ = 37067037000.

The previous prime is 111201110989. The next prime is 111201111017. The reversal of 111201111012 is 210111102111.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 9266759251 = 111201111012 / (1 + 1 + 1 + 2 + 0 + 1 + 1 + 1 + 1 + 0 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (111201111017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4633379614 + ... + 4633379637.

Almost surely, 2^111201111012 is an apocalyptic number.

111201111012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111201111012 is an abundant number, since it is smaller than the sum of its proper divisors (148268148044).

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

111201111012 is a wasteful number, since it uses less digits than its factorization.

111201111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9266759258 (or 9266759256 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 111201111012 its reverse (210111102111), we get a palindrome (321312213123).

The spelling of 111201111012 in words is "one hundred eleven billion, two hundred one million, one hundred eleven thousand, twelve".