222222221122 has 12 divisors (see below), whose sum is σ = 366391183158. Its totient is φ = 101010100400.

The previous prime is 222222221113. The next prime is 222222221173. The reversal of 222222221122 is 221122222222.

It can be written as a sum of positive squares in only one way, i.e., 154481227681 + 67740993441 = 393041^2 + 260271^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

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

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 222222221093 and 222222221102.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 459136579 + ... + 459137062.

Almost surely, 2^222222221122 is an apocalyptic number.

222222221122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

222222221122 is a deficient number, since it is larger than the sum of its proper divisors (144168962036).

222222221122 is a wasteful number, since it uses less digits than its factorization.

222222221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918273665 (or 918273654 counting only the distinct ones).

The product of its digits is 1024, while the sum is 22.

Adding to 222222221122 its reverse (221122222222), we get a palindrome (443344443344).

It can be divided in two parts, 222222 and 221122, that added together give a palindrome (443344).

The spelling of 222222221122 in words is "two hundred twenty-two billion, two hundred twenty-two million, two hundred twenty-one thousand, one hundred twenty-two".