22111111220222 has 8 divisors (see below), whose sum is σ = 33166707454272. Its totient is φ = 11055542068800.

The previous prime is 22111111220201. The next prime is 22111111220267. The reversal of 22111111220222 is 22202211111122.

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

It is a junction number, because it is equal to n+sod(n) for n = 22111111220194 and 22111111220203.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4588979 + ... + 8079662.

It is an arithmetic number, because the mean of its divisors is an integer number (4145838431784).

Almost surely, 2^{22111111220222} is an apocalyptic number.

22111111220222 is a deficient number, since it is larger than the sum of its proper divisors (11055596234050).

22111111220222 is a wasteful number, since it uses less digits than its factorization.

22111111220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13541314.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 22111111220222 its reverse (22202211111122), we get a palindrome (44313322331344).

The spelling of 22111111220222 in words is "twenty-two trillion, one hundred eleven billion, one hundred eleven million, two hundred twenty thousand, two hundred twenty-two".