111216136602 has 32 divisors (see below), whose sum is σ = 224185167360. Its totient is φ = 36780035760.

The previous prime is 111216136601. The next prime is 111216136631. The reversal of 111216136602 is 206631612111.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 111216136602.

It is not an unprimeable number, because it can be changed into a prime (111216136601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3697299 + ... + 3727257.

It is an arithmetic number, because the mean of its divisors is an integer number (7005786480).

Almost surely, 2^111216136602 is an apocalyptic number.

111216136602 is an abundant number, since it is smaller than the sum of its proper divisors (112969030758).

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

111216136602 is a wasteful number, since it uses less digits than its factorization.

111216136602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34818.

The product of its (nonzero) digits is 2592, while the sum is 30.

Adding to 111216136602 its reverse (206631612111), we get a palindrome (317847748713).

The spelling of 111216136602 in words is "one hundred eleven billion, two hundred sixteen million, one hundred thirty-six thousand, six hundred two".