22231220222 has 8 divisors (see below), whose sum is σ = 33350699496. Its totient is φ = 11114320392.

The previous prime is 22231220177. The next prime is 22231220243. The reversal of 22231220222 is 22202213222.

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 = 22231220194 and 22231220203.

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, 623168 + ... + 657875.

It is an arithmetic number, because the mean of its divisors is an integer number (4168837437).

Almost surely, 2^22231220222 is an apocalyptic number.

22231220222 is a deficient number, since it is larger than the sum of its proper divisors (11119479274).

22231220222 is a wasteful number, since it uses less digits than its factorization.

22231220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289722.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 22231220222 its reverse (22202213222), we get a palindrome (44433433444).

The spelling of 22231220222 in words is "twenty-two billion, two hundred thirty-one million, two hundred twenty thousand, two hundred twenty-two".