111222230022 has 48 divisors (see below), whose sum is σ = 249575219712. Its totient is φ = 35774187120.

The previous prime is 111222230003. The next prime is 111222230033. The reversal of 111222230022 is 220032222111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111222229977 and 111222230004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 865768 + ... + 985899.

It is an arithmetic number, because the mean of its divisors is an integer number (5199483744).

Almost surely, 2^111222230022 is an apocalyptic number.

111222230022 is an abundant number, since it is smaller than the sum of its proper divisors (138352989690).

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

111222230022 is a wasteful number, since it uses less digits than its factorization.

111222230022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851793 (or 1851790 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 111222230022 its reverse (220032222111), we get a palindrome (331254452133).

The spelling of 111222230022 in words is "one hundred eleven billion, two hundred twenty-two million, two hundred thirty thousand, twenty-two".