111123212313222 has 48 divisors (see below), whose sum is σ = 246697625210400. Its totient is φ = 36129087849600.

The previous prime is 111123212313187. The next prime is 111123212313241. The reversal of 111123212313222 is 222313212321111.

111123212313222 is a `hidden beast` number, since 1 + 1 + 1 + 1 + 2 + 321 + 2 + 313 + 2 + 22 = 666.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14671597 + ... + 20916552.

It is an arithmetic number, because the mean of its divisors is an integer number (5139533858550).

Almost surely, 2^{111123212313222} is an apocalyptic number.

111123212313222 is an abundant number, since it is smaller than the sum of its proper divisors (135574412897178).

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

111123212313222 is a wasteful number, since it uses less digits than its factorization.

111123212313222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35592429 (or 35592426 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

Adding to 111123212313222 its reverse (222313212321111), we get a palindrome (333436424634333).

The spelling of 111123212313222 in words is "one hundred eleven trillion, one hundred twenty-three billion, two hundred twelve million, three hundred thirteen thousand, two hundred twenty-two".