111101212102 has 16 divisors (see below), whose sum is σ = 166858578432. Its totient is φ = 55481718600.

The previous prime is 111101212049. The next prime is 111101212111. The reversal of 111101212102 is 201212101111.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11141923 + ... + 11151889.

It is an arithmetic number, because the mean of its divisors is an integer number (10428661152).

Almost surely, 2^111101212102 is an apocalyptic number.

111101212102 is a deficient number, since it is larger than the sum of its proper divisors (55757366330).

111101212102 is a wasteful number, since it uses less digits than its factorization.

111101212102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16323.

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

Adding to 111101212102 its reverse (201212101111), we get a palindrome (312313313213).

The spelling of 111101212102 in words is "one hundred eleven billion, one hundred one million, two hundred twelve thousand, one hundred two".