111200012 has 36 divisors (see below), whose sum is σ = 246955464. Its totient is φ = 43323840.

The previous prime is 111200003. The next prime is 111200053. The reversal of 111200012 is 210002111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23633 + ... + 27944.

It is an arithmetic number, because the mean of its divisors is an integer number (6859874).

Almost surely, 2^111200012 is an apocalyptic number.

It is an amenable number.

111200012 is an abundant number, since it is smaller than the sum of its proper divisors (135755452).

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

111200012 is a wasteful number, since it uses less digits than its factorization.

111200012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51606 (or 51597 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 111200012 is about 10545.1416301537. The cubic root of 111200012 is about 480.8780398572.

Adding to 111200012 its reverse (210002111), we get a palindrome (321202123).

The spelling of 111200012 in words is "one hundred eleven million, two hundred thousand, twelve".