111111011012212 has 48 divisors (see below), whose sum is σ = 199058274455040. Its totient is φ = 54238419268992.

The previous prime is 111111011012203. The next prime is 111111011012257. The reversal of 111111011012212 is 212210110111111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5707063614 + ... + 5707083082.

It is an arithmetic number, because the mean of its divisors is an integer number (4147047384480).

Almost surely, 2^{111111011012212} is an apocalyptic number.

It is an amenable number.

111111011012212 is a deficient number, since it is larger than the sum of its proper divisors (87947263442828).

111111011012212 is a wasteful number, since it uses less digits than its factorization.

111111011012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33160 (or 33158 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 111111011012212 its reverse (212210110111111), we get a palindrome (323321121123323).

The spelling of 111111011012212 in words is "one hundred eleven trillion, one hundred eleven billion, eleven million, twelve thousand, two hundred twelve".