111101312212 has 12 divisors (see below), whose sum is σ = 212102505216. Its totient is φ = 50500596440.

The previous prime is 111101312209. The next prime is 111101312227. The reversal of 111101312212 is 212213101111.

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 3 ways as a sum of consecutive naturals, for example, 1262514868 + ... + 1262514955.

It is an arithmetic number, because the mean of its divisors is an integer number (17675208768).

Almost surely, 2^111101312212 is an apocalyptic number.

It is an amenable number.

111101312212 is a deficient number, since it is larger than the sum of its proper divisors (101001193004).

111101312212 is a wasteful number, since it uses less digits than its factorization.

111101312212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2525029838 (or 2525029836 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 111101312212 its reverse (212213101111), we get a palindrome (323314413323).

The spelling of 111101312212 in words is "one hundred eleven billion, one hundred one million, three hundred twelve thousand, two hundred twelve".