111222112112112 has 80 divisors (see below), whose sum is σ = 290289653085600. Its totient is φ = 36691355222016.

The previous prime is 111222112112101. The next prime is 111222112112143. The reversal of 111222112112112 is 211211211222111.

It is a nude number because it is divisible by every one of its digits.

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, 679456708 + ... + 679620380.

It is an arithmetic number, because the mean of its divisors is an integer number (3628620663570).

Almost surely, 2^{111222112112112} is an apocalyptic number.

111222112112112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111222112112112 is an abundant number, since it is smaller than the sum of its proper divisors (179067540973488).

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

111222112112112 is a wasteful number, since it uses less digits than its factorization.

111222112112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309730 (or 309724 counting only the distinct ones).

The product of its digits is 64, while the sum is 21.

Adding to 111222112112112 its reverse (211211211222111), we get a palindrome (322433323334223).

The spelling of 111222112112112 in words is "one hundred eleven trillion, two hundred twenty-two billion, one hundred twelve million, one hundred twelve thousand, one hundred twelve".