222111100222 has 32 divisors (see below), whose sum is σ = 365677887744. Its totient is φ = 100343875200.

The previous prime is 222111100201. The next prime is 222111100223. The reversal of 222111100222 is 222001111222.

It is a happy number.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 222111100196 and 222111100205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222111100223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2327398 + ... + 2420950.

It is an arithmetic number, because the mean of its divisors is an integer number (11427433992).

Almost surely, 2^222111100222 is an apocalyptic number.

222111100222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

222111100222 is a deficient number, since it is larger than the sum of its proper divisors (143566787522).

222111100222 is a wasteful number, since it uses less digits than its factorization.

222111100222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94224.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222111100222 its reverse (222001111222), we get a palindrome (444112211444).

The spelling of 222111100222 in words is "two hundred twenty-two billion, one hundred eleven million, one hundred thousand, two hundred twenty-two".