111700660212 has 72 divisors (see below), whose sum is σ = 296438635584. Its totient is φ = 35396165376.

The previous prime is 111700660151. The next prime is 111700660213. The reversal of 111700660212 is 212066007111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111700660213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 278853 + ... + 548780.

It is an arithmetic number, because the mean of its divisors is an integer number (4117203272).

Almost surely, 2^111700660212 is an apocalyptic number.

111700660212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111700660212 is an abundant number, since it is smaller than the sum of its proper divisors (184737975372).

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

111700660212 is a wasteful number, since it uses less digits than its factorization.

111700660212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827829 (or 827824 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

Adding to 111700660212 its reverse (212066007111), we get a palindrome (323766667323).

The spelling of 111700660212 in words is "one hundred eleven billion, seven hundred million, six hundred sixty thousand, two hundred twelve".