111031223122 has 8 divisors (see below), whose sum is σ = 167115254796. Its totient is φ = 55326138192.

The previous prime is 111031223117. The next prime is 111031223131. The reversal of 111031223122 is 221322130111.

It can be written as a sum of positive squares in 2 ways, for example, as 103200920001 + 7830303121 = 321249^2 + 88489^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 111031223122.

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 3 ways as a sum of consecutive naturals, for example, 94735953 + ... + 94737124.

Almost surely, 2^111031223122 is an apocalyptic number.

111031223122 is a deficient number, since it is larger than the sum of its proper divisors (56084031674).

111031223122 is a wasteful number, since it uses less digits than its factorization.

111031223122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189473372.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 111031223122 its reverse (221322130111), we get a palindrome (332353353233).

It can be divided in two parts, 111031 and 223122, that added together give a triangular number (334153 = T₈₁₇).

The spelling of 111031223122 in words is "one hundred eleven billion, thirty-one million, two hundred twenty-three thousand, one hundred twenty-two".