11112112102 has 24 divisors (see below), whose sum is σ = 20881004256. Its totient is φ = 4395999888.

The previous prime is 11112112093. The next prime is 11112112139. The reversal of 11112112102 is 20121121111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

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, 4359838 + ... + 4362385.

It is an arithmetic number, because the mean of its divisors is an integer number (870041844).

Almost surely, 2^11112112102 is an apocalyptic number.

11112112102 is a deficient number, since it is larger than the sum of its proper divisors (9768892154).

11112112102 is a wasteful number, since it uses less digits than its factorization.

11112112102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8722252 (or 8722245 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11112112102 its reverse (20121121111), we get a palindrome (31233233213).

Subtracting 11112112102 from its reverse (20121121111), we obtain a palindrome (9009009009).

The spelling of 11112112102 in words is "eleven billion, one hundred twelve million, one hundred twelve thousand, one hundred two".