111020012 has 6 divisors (see below), whose sum is σ = 194285028. Its totient is φ = 55510004.

The previous prime is 111020003. The next prime is 111020029. The reversal of 111020012 is 210020111.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13877498 + ... + 13877505.

It is an arithmetic number, because the mean of its divisors is an integer number (32380838).

Almost surely, 2^111020012 is an apocalyptic number.

It is an amenable number.

111020012 is a deficient number, since it is larger than the sum of its proper divisors (83265016).

111020012 is a wasteful number, since it uses less digits than its factorization.

111020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27755007 (or 27755005 counting only the distinct ones).

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

The square root of 111020012 is about 10536.6034375410. The cubic root of 111020012 is about 480.6184331910.

Adding to 111020012 its reverse (210020111), we get a palindrome (321040123).

Subtracting 111020012 from its reverse (210020111), we obtain a palindrome (99000099).

The spelling of 111020012 in words is "one hundred eleven million, twenty thousand, twelve".