111011010012 has 36 divisors (see below), whose sum is σ = 320698474096. Its totient is φ = 31717431360.

The previous prime is 111011009959. The next prime is 111011010059. The reversal of 111011010012 is 210010110111.

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 (9).

It is a junction number, because it is equal to n+sod(n) for n = 111011009976 and 111011010003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 220259689 + ... + 220260192.

Almost surely, 2^111011010012 is an apocalyptic number.

111011010012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111011010012 is an abundant number, since it is smaller than the sum of its proper divisors (209687464084).

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

111011010012 is a wasteful number, since it uses less digits than its factorization.

111011010012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440519898 (or 440519893 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 111011010012 its reverse (210010110111), we get a palindrome (321021120123).

The spelling of 111011010012 in words is "one hundred eleven billion, eleven million, ten thousand, twelve".