111222110012 has 24 divisors (see below), whose sum is σ = 209893086816. Its totient is φ = 51264174528.

The previous prime is 111222110011. The next prime is 111222110063. The reversal of 111222110012 is 210011222111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111222110011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1400723 + ... + 1477994.

It is an arithmetic number, because the mean of its divisors is an integer number (8745545284).

Almost surely, 2^111222110012 is an apocalyptic number.

It is an amenable number.

111222110012 is a deficient number, since it is larger than the sum of its proper divisors (98670976804).

111222110012 is a wasteful number, since it uses less digits than its factorization.

111222110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2879477 (or 2879475 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111222110012 its reverse (210011222111), we get a palindrome (321233332123).

The spelling of 111222110012 in words is "one hundred eleven billion, two hundred twenty-two million, one hundred ten thousand, twelve".