111102000012 has 36 divisors (see below), whose sum is σ = 281334788280. Its totient is φ = 36968907072.

The previous prime is 111102000001. The next prime is 111102000029. The reversal of 111102000012 is 210000201111.

It is a happy number.

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 = 111101999958 and 111102000003.

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, 2691438 + ... + 2732405.

It is an arithmetic number, because the mean of its divisors is an integer number (7814855230).

Almost surely, 2^111102000012 is an apocalyptic number.

111102000012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111102000012 is an abundant number, since it is smaller than the sum of its proper divisors (170232788268).

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

111102000012 is a wasteful number, since it uses less digits than its factorization.

111102000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5424422 (or 5424417 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 111102000012 its reverse (210000201111), we get a palindrome (321102201123).

The spelling of 111102000012 in words is "one hundred eleven billion, one hundred two million, twelve", and thus it is an aban number.