1122220222 has 16 divisors (see below), whose sum is σ = 1730552832. Its totient is φ = 545527800.

The previous prime is 1122220207. The next prime is 1122220241. The reversal of 1122220222 is 2220222211.

It is a junction number, because it is equal to n+sod(n) for n = 1122220196 and 1122220205.

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 7 ways as a sum of consecutive naturals, for example, 25338 + ... + 53725.

It is an arithmetic number, because the mean of its divisors is an integer number (108159552).

Almost surely, 2^1122220222 is an apocalyptic number.

1122220222 is a deficient number, since it is larger than the sum of its proper divisors (608332610).

1122220222 is a wasteful number, since it uses less digits than its factorization.

1122220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79263.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1122220222 is about 33499.5555492905. Note that the first 4 decimals coincide. The cubic root of 1122220222 is about 1039.1845870499.

Adding to 1122220222 its reverse (2220222211), we get a palindrome (3342442433).

The spelling of 1122220222 in words is "one billion, one hundred twenty-two million, two hundred twenty thousand, two hundred twenty-two".