222222112211 has 8 divisors (see below), whose sum is σ = 243345890304. Its totient is φ = 201251962120.

The previous prime is 222222112207. The next prime is 222222112213. The reversal of 222222112211 is 112211222222.

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

It is not a de Polignac number, because 222222112211 - 2² = 222222112207 is a prime.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (222222112213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38403971 + ... + 38409756.

It is an arithmetic number, because the mean of its divisors is an integer number (30418236288).

Almost surely, 2^222222112211 is an apocalyptic number.

222222112211 is a deficient number, since it is larger than the sum of its proper divisors (21123778093).

222222112211 is a wasteful number, since it uses less digits than its factorization.

222222112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76814001.

The product of its digits is 256, while the sum is 20.

Adding to 222222112211 its reverse (112211222222), we get a palindrome (334433334433).

It can be divided in two parts, 222222 and 112211, that added together give a palindrome (334433).

The spelling of 222222112211 in words is "two hundred twenty-two billion, two hundred twenty-two million, one hundred twelve thousand, two hundred eleven".