22223221306 has 48 divisors (see below), whose sum is σ = 39532524192. Its totient is φ = 9307124640.

The previous prime is 22223221271. The next prime is 22223221367. The reversal of 22223221306 is 60312232222.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1764925 + ... + 1777471.

It is an arithmetic number, because the mean of its divisors is an integer number (823594254).

Almost surely, 2^22223221306 is an apocalyptic number.

22223221306 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22223221306 is a deficient number, since it is larger than the sum of its proper divisors (17309302886).

22223221306 is a wasteful number, since it uses less digits than its factorization.

22223221306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13147 (or 13136 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 22223221306 its reverse (60312232222), we get a palindrome (82535453528).

The spelling of 22223221306 in words is "twenty-two billion, two hundred twenty-three million, two hundred twenty-one thousand, three hundred six".